Runaway Dog. Dr. Jeff treats a skittish Savannah cat with an unusual condition. And, the team races to save a stray dog as it runs toward the freeway.
06:48 Dr. Dee: Alaska Vet 2/1s.
On the Edge of Nowhere. Dr. Dee and husband Ken help the remote villages of Alaska by hosting a vet clinic. She has emergency with an akita apparently suffering from a gunshot wound.
07:36 Animal Cribs 2/6s.
Backyard Barnyard. A family shares their crowded home with rescued animals, including two mini horses that sleep in the master bedroom! Antonio builds them the ultimate horse barn.
08:25 Little Giants 1/13s.
Adorable Assassin. The team is in Madagascar to study the recently-discovered Goodman's mouse lemur. One of the world's smallest primates, it's incredible agile and ferocious.
08:50 Little Giants 1/14s.
Winged Warrior. Bradley and Billy are hunting for dragons deep in the rainforests of Thailand. The flying dragon rules the jungle canopy, gliding and dive-bombing its prey.
09:15 Wild Mexico
Mexico is an ancient land, full of diversity and mystery. It is home to a vast wilderness of oceans, deserts, jungle, and unique creatures that are found nowhere else on earth.
10:05 Big Cat Tales 1/2s.
Danger In The Long Grass. It's mating season for the Marsh Pride of lions, and Askari has his eye on Cloudy Eye. Cheetah Malaika is hunting for wildebeest so she can feed her cubs.
10:55 Dr. Jeff: Rocky Mountain Vet 6/2s.
Gator Tale. An adventurous puppy falls off a trampoline, can Dr. Jeff and Petra mend its broken leg? Meanwhile, Susan takes care of a litter of kittens and their mum.
11:50 Animal Cribs 1/9s.
Ultimate Builds. Designer Antonio Ballatore showcases incredible pet-centric builds that have inspired his own creations.
12:45 Insane Pools: Off the Deep End 3/1s.
Top of the Mountain. Lucas is in Utah to build a dream backyard on the side of a mountain. He creates a Tuscan-themed pool with a spa, a massive linear fire wall and a grotto!
13:40 Insane Pools: Off the Deep End 3/2s.
Piña Pool-Ada. On his first collaboration with a local design team, Lucas creates a tropical oasis. It features an island, a huge grotto rock and a Tiki-themed cabana!
14:35 Treehouse Masters 7/7s.
Mountainside Bulldog Bungalow. A couple dreams of a treehouse that will recapture mountain vistas. Pete creates a bungalow with large windows to take in a view that was once lost.
15:30 Treehouse Masters 7/8s.
Shaq Takes It To The Trees!. Pete builds an all-star speakeasy for basketball legend Shaquille O'Neal. He creates a decagonal structure with soaring ceilings and extra-wide stairs.
16:25 Dr. Jeff: Rocky Mountain Vet 5/5s.
Runaway Dog. Dr. Jeff treats a skittish Savannah cat with an unusual condition. And, the team races to save a stray dog as it runs toward the freeway.
17:20 Big Cat Tales 1/4s.
Faces From The Shadows. After a few months away, the team returns during the migration of the wildebeest. The Marsh Pride are missing after a skirmish with the six nomad male lions.
18:15 My Cat From Hell 9/10s.
Posey The Terror. Jackson faces the vicious claws of a troubled cat who's terrorizing a family about to bring home a newborn baby. Plus, he meets an inspirational cat named Skinny.
19:10 My Cat From Hell 9/11s.
Philly's Forgotten Cats. An old friend enlists Jacksons help to recruit a new generation of volunteers in an effort to save community cats in Philadelphia.
20:05 Alaskan Bush People 4/3s.
Head Above Water. Disaster strikes as floods plague the region, and the Browns must balance the fate of their new community with the success of their homestead.
21:00 Wild Mexico
Mexico is an ancient land, full of diversity and mystery. It is home to a vast wilderness of oceans, deserts, jungle, and unique creatures that are found nowhere else on earth.
21:55 Dr. Jeff: Rocky Mountain Vet 4/22s.
Close To Home. Dr Jeff helps a remote town which has become overwhelmed with feral cats. Plus, a staff member's dog needs emergency surgery and Jeff rushes to save a Chihuahua.
22:50 Dr. Jeff: Rocky Mountain Vet 5/1s.
At Home With Wolves. Dr. Jeff treats a puppy suffering from a deadly virus. And, he must gain the trust of rescued wolves to help an ailing member of the pack.
23:45 Dr. Jeff: Rocky Mountain Vet 5/2s.
A Brave Little Dog. Dr. Jeff treats a dog with a mysterious injury, while a neglected turtle needs a new home. Plus, the team falls in love with a litter of stray kittens.
00:40 Dr. Dee: Alaska Vet 2/1s.
On the Edge of Nowhere. Dr. Dee and husband Ken help the remote villages of Alaska by hosting a vet clinic. She has emergency with an akita apparently suffering from a gunshot wound.
01:30 How Do Animals Do That? 1/34s.
Lizard Vs. Water Buffalo. How can a fish fly the length of three football fields? Can a spider be adorable? What's the real story behind a flamingo's colour?
02:00 Big Cat Tales 1/2s.
Danger In The Long Grass. It's mating season for the Marsh Pride of lions, and Askari has his eye on Cloudy Eye. Cheetah Malaika is hunting for wildebeest so she can feed her cubs.
03:00 The Zoo 4/1s.
Episode 1. A new male okapi named Magani is paired with breeding veteran, Kweli, who has already had several calves. But, Kweli falls ill with congestive heart failure.
04:00 Dr. Jeff: Rocky Mountain Vet 6/2s.
Gator Tale. An adventurous puppy falls off a trampoline, can Dr. Jeff and Petra mend its broken leg? Meanwhile, Susan takes care of a litter of kittens and their mum.
04:45 Wild Costa Rica
Explore the incredible creatures that inhabit Costa Rica, one of the most ecologically diverse places on earth. Meet the rare and secretive ocelot and puma, and much more.
05:30 Little Giants 1/11s.
Prickly Punk. A difficult search of the Madagascan forest floor reveals the lowland tenrec, an animal that often tunnels underground and loaded with ultra-sharp senses and defences.
05:55 Little Giants 1/12s.
Medieval Raptor. Bradley and Billy discover that the Yucatan thorn forest is the ideal home for the tough spiny-tailed iguana, but a perilous place for thin-skinned humans.
Runaway Dog. Dr. Jeff treats a skittish Savannah cat with an unusual condition. And, the team races to save a stray dog as it runs toward the freeway.
07:00 Dr. Jeff: Rocky Mountain Vet 5/6s.
A Tiger's Tale. The team cares for abandoned kittens. Plus, Dr. Jeff gives hope to a concerned owner when their beloved dog is diagnosed with cancer and a rescue tiger finds love.
07:48 Dr. Dee: Alaska Vet 2/2s.
High on the Hog. Pot-bellied pig Lilly Lou undergoes surgery full of surprises, Dr. Dee treats a stallion with a possibly deadly tumour and she fundraises with a pet tricks contest.
08:36 Animal Cribs 2/7s.
Pygmy Goat Playground. A family's two Nigerian dwarf goats wreak havoc in their backyard! So, designer Antonio transforms it into a fun goat playground, including a climbing tower.
09:25 Little Giants 1/15s.
Airborne Battle Tank. The rhinoceros beetle has one of the highest strength to bodyweight ratios on the planet. The team is in Thailand to test this beefy beetle.
09:50 Little Giants 1/16s.
Venomous Missile. In Thailand, the team track down one of the few venomous mammals in the world. With incredible agility, the Thai musk shrew is a force to be reckoned with.
10:15 Wild Hawaii
Explore the sublime nature of the Hawaiian Islands and discover of the islands' contrasting ecosystems accommodate many endangered species.
11:05 Big Cat Tales 1/3s.
Battle On The Plains. Bahati the leopard struggles to protect her cubs from baboons and lions. Meanwhile, the arrival of six nomad male lions puts the entire Marsh Pride at risk.
11:55 Dr. Jeff: Rocky Mountain Vet 6/3s.
Petra's Pigs. Tigger the cat is monitored closely for unusual eating habits. Plus, Dr. Jeff cautions an owner of the perils of buying online when she brings in her unwell puppy.
12:50 The Zoo 4/8s.
Great Snakes!. After more than 100 venomous snakes are taken from a private home, it's up to the zoo to care for them. Plus, two pronghorn fawns make their debut!
13:45 The Zoo 4/9s.
Wild Dogs On The Move. A trio of rare dhole canines are being moved to the zoo. Plus, A tinamou chick is hand-reared, while a tool is welded to extract a tusk from a sweet babirusa.
14:40 Wildest Middle East 1/4s.
Egypt. Among the baron and vast sands of north Africa, there is actually a teeming ecosystem. From the crocodiles of the Nile; the horned viper and the bustling Red Sea.
15:35 Pit Bulls & Parolees 4/13s.
A Family Affair. Mariah is devastated when she learns that a friend has passed away. Later, a couple from Tia's past is interested in adopting four dogs.
16:30 Pit Bulls & Parolees 4/14s.
Storm on the Horizon. Hurricane season is approaching and Tia prepares for the worst. Later, Villalobos employee Rico steps up to the plate when his grandparents adopt a shy dog.
17:25 Dr. Jeff: Rocky Mountain Vet 5/6s.
A Tiger's Tale. The team cares for abandoned kittens. Plus, Dr. Jeff gives hope to a concerned owner when their beloved dog is diagnosed with cancer and a rescue tiger finds love.
18:20 Pit Bulls & Parolees 4/15s.
Storm Surge. Hurricane Isaac tears through New Orleans, flooding Villalobos' evacuation location and leaving Tia and her team cut off from the rest of the world.
19:15 The Zoo: San Diego 2/8s.
Dining With Meerkats. Staff hope for a mating match between the black rhino newcomers. Meanwhile, the meerkats are put on a new diet and a lizard needs support.
20:10 Wild Australia 1/2s.
Wild Australia - Part 2. Australia is one of the largest and most extreme wildernesses on earth. Here, the indigenous Aborigines have survived by observing and learning from nature.
21:05 Dodo Heroes 2/5s.
Theresa And Scruff's Kangaroo Haven. Theresa and Tony "Scruff" Matthews turned their retirement home in Australia into a kangaroo rescue and are releasing three back into the wild.
22:00 Crocodile Hunter 4/15s.
Dangerous Africans. Join Steve and Terri Irwin on a hair-raising trip through Africa to study some of the most notoriously dangerous African animals.
22:55 The Last Alaskans 1/3s.
Winter Is Coming. To prepare for the unforgiving season when temperatures drop to -50, everyone must search for the one animal large enough to feed a family through winter.
23:50 The Last Alaskans 1/4s.
Everything Is Hungry. Winter has finally arrived. While Bob deals with the ramifications of crashing his plane, Heimo must find a way to cross a newly frozen river.
00:45 Expedition Bigfoot 1/6s.
Bigfoot Moon Rising. After Russell records thermal imagery that believes is Bigfoot. Mireya and Ronny have a terrifying experience when they realise they're not alone in the forest.
01:40 Dr. Dee: Alaska Vet 2/2s.
High on the Hog. Pot-bellied pig Lilly Lou undergoes surgery full of surprises, Dr. Dee treats a stallion with a possibly deadly tumour and she fundraises with a pet tricks contest.
02:30 Big Cat Tales 1/3s.
Battle On The Plains. Bahati the leopard struggles to protect her cubs from baboons and lions. Meanwhile, the arrival of six nomad male lions puts the entire Marsh Pride at risk.
03:15 Little Giants 1/11s.
Prickly Punk. A difficult search of the Madagascan forest floor reveals the lowland tenrec, an animal that often tunnels underground and loaded with ultra-sharp senses and defences.
03:40 Little Giants 1/12s.
Medieval Raptor. Bradley and Billy discover that the Yucatan thorn forest is the ideal home for the tough spiny-tailed iguana, but a perilous place for thin-skinned humans.
04:00 Dr. Jeff: Rocky Mountain Vet 6/3s.
Petra's Pigs. Tigger the cat is monitored closely for unusual eating habits. Plus, Dr. Jeff cautions an owner of the perils of buying online when she brings in her unwell puppy.
04:45 Wild Mexico
Mexico is an ancient land, full of diversity and mystery. It is home to a vast wilderness of oceans, deserts, jungle, and unique creatures that are found nowhere else on earth.
05:30 Little Giants 1/13s.
Adorable Assassin. The team is in Madagascar to study the recently-discovered Goodman's mouse lemur. One of the world's smallest primates, it's incredible agile and ferocious.
05:55 Little Giants 1/14s.
Winged Warrior. Bradley and Billy are hunting for dragons deep in the rainforests of Thailand. The flying dragon rules the jungle canopy, gliding and dive-bombing its prey.
A Tiger's Tale. The team cares for abandoned kittens. Plus, Dr. Jeff gives hope to a concerned owner when their beloved dog is diagnosed with cancer and a rescue tiger finds love.
07:00 Dr. Jeff: Rocky Mountain Vet 5/7s.
Tiny Soul Mate. Dr. Jeff helps 40 miniature Australian shepherds rescued from a puppy mill. And, vet technician Christine needs Dr. Jeff's help when her chihuahua struggles to walk.
07:48 Treehouse Masters 5/1s.
Treehouse Z. Pete connects with old friends to build them a Zen-like sanctuary in the trees. The team stays calm in constructing a retreat with a view of the Blue Ridge Mountains.
08:36 The Last Alaskans 1/6s.
Into the Darkness. The darkness has arrived and Heimo gets caught miles from home in the wilderness. Plus, the Lewis Family prepares for a life changing event.
09:25 The Last Alaskans 1/7s.
Nothing Lasts Forever. As the end of winter nears, the residents look toward to the future. Bob trains Ruger to be a hunting dog, while Ray prepares for a life without his daughters.
10:15 My Cat From Hell 9/4s.
Lucifer The Cat. Jackson helps a single mum whose cat, Pickles, is terrifying her kids. Plus, he works with Lucifer, a cat whose devilish food obsession may cost him his life.
11:05 My Cat From Hell 9/5s.
My Therapy Cat Needs Therapy. Jackson helps a veteran with PTSD whose therapy cat is stressing him out. Plus, Bartholomew is not only tearing up the furniture but also a marriage.
11:55 Lone Star Law 4/12s.
Saving The Herd. Game Warden Eddins assists the local police with an animal cruelty case. Plus, Richards responds to a trespassing dispute and Roraback relocates a snapping turtle.
12:50 Lone Star Law 4/13s.
Stray Bullets. Gerry investigates a situation involving stray bullets while checking teal hunters along the border fence. Plus, turtle hatchlings are released on South Padre Island.
13:45 Animal Cribs 1/1s.
Tricked Out Cat Castle. Designer Antonio Ballatore and his team build a cats-only treehouse. Linked to the family room, Taffy and her ten-year-old owner can now play in style.
14:40 The Last Alaskans 1/1s.
No Man's Land. It's fall in the Arctic National Wildlife Refuge and that means the caribou are migrating. Plus, a bear ransacks a cabin, creating a food shortage.
15:35 The Last Alaskans 1/2s.
The Hunted. Surviving 400 miles from civilization boils down to one thing, finding food. Heimo pursues the animal that can feed him and Edna for months, a moose.
16:30 Wildest Europe 1/1s.
Land Of Ice And Snow. Explores the wildlife of Northern Europe's frozen frontier, from the golden eagle in Scotland's Cairngorms to the polar bears of Norway's Svalbard Archipelago.
17:25 Dr. Jeff: Rocky Mountain Vet 5/7s.
Tiny Soul Mate. Dr. Jeff helps 40 miniature Australian shepherds rescued from a puppy mill. And, vet technician Christine needs Dr. Jeff's help when her chihuahua struggles to walk.
18:20 Wildest Europe 1/2s.
Rivers, Lakes And Oceans. Discovers the wildlife of Europe's waterways, including the world's only underwater spider, the European river otter, and the Danube delta's golden jackal.
19:15 Crikey! It's the Irwins 1/1s.
Steve's Legacy Continues. Steve Irwin's son Robert follows in his footsteps. After months of training, it's time for him to solo feed the most notorious croc at the Australia Zoo.
20:10 Crikey! It's the Irwins 1/2s.
Tiger Eyes. Hunter the tiger is being sedated for his annual eye check, allowing Terri to get close. Bindi puts on a birthday party for Minibus - the Zoo's oldest Wombat.
21:05 Expedition Bigfoot 1/8s.
The Final Hours. The team believes they've finally narrowed down where Bigfoot has been hiding throughout their expedition. A high-tech drone is brought in to investigate.
22:00 In Search Of Monsters 1/2s.
The Loch Ness Monster. Experts explore a new theory surrounding Scotland's Loch Ness Monster. The creature may not only be real, but possibly more dangerous than ever imagined.
22:55 My Cat From Hell 9/6s.
Guilt Stricken Guardian. Jackson needs to find a way to help a distressed cat's uncontrollable spraying. Plus, can he get a guilty guardian to stop feeding her diabetic cat lasagne?
23:50 My Cat From Hell 9/7s.
Baby The Bully. Jackson meets a bully cat who is holding all the female cats hostage, causing them to hide in the bathroom. Plus, he meets a therapy cat who volunteers for charity.
00:45 The Last Alaskans 1/6s.
Into the Darkness. The darkness has arrived and Heimo gets caught miles from home in the wilderness. Plus, the Lewis Family prepares for a life changing event.
01:40 The Last Alaskans 1/7s.
Nothing Lasts Forever. As the end of winter nears, the residents look toward to the future. Bob trains Ruger to be a hunting dog, while Ray prepares for a life without his daughters.
02:30 Dr. Jeff: Rocky Mountain Vet 6/2s.
Gator Tale. An adventurous puppy falls off a trampoline, can Dr. Jeff and Petra mend its broken leg? Meanwhile, Susan takes care of a litter of kittens and their mum.
03:15 The Last Alaskans 1/5s.
The Last Sunset. While Tyler and Ashley trek 15 miles to a lake cabin in search for food. Bob leaves home to see his daughter and assess the damage of his crashed plane.
04:00 Treehouse Masters 7/3s.
The Alaskan Treetop Sauna. Pete is off to build his second Alaskan treehouse! He sets out to create an outside-in treehouse and heats things up by installing a sauna in the trees.
04:45 Treehouse Masters 7/4s.
Off-The-Grid Getaway. Pete creates an off-the-grid escape that's all about peace, love, and treehouses. Once built, the owner adds a massive hammock in the trees.
05:30 How Do Animals Do That? 1/1s.
Levitating Lizards And Immortal Jellyfish. New science and amazing demonstrations reveal how a lizard can literally walk on water. And, can jellyfish live forever?
05:55 How Do Animals Do That? 1/2s.
Supersonic Owls And Invisible Octopuses. A bird expert reveals how a barn owl catches prey it can't even see. And, what makes octopuses masters of disguise?
Tiny Soul Mate. Dr. Jeff helps 40 miniature Australian shepherds rescued from a puppy mill. And, vet technician Christine needs Dr. Jeff's help when her chihuahua struggles to walk.
07:00 Dr. Jeff: Rocky Mountain Vet 5/8s.
Happy Couple Of Camels. Dr. Jeff helps a beloved German shepherd walk again. Meanwhile, Dr. Don has to act fast when a cat eats poison and a scared dog runs loose outside the clinic.
07:48 Treehouse Masters 5/2s.
Apres Skihouse Treehouse. Pete designs a ski chalet treehouse that comes complete with a secret bedroom and a double-sided fireplace to keep guests warm both inside and out.
08:36 Pit Bulls & Parolees 5/1s.
Pitch Black. A midnight rescue finds Tia, Tania and new worker Perry scrambling after an injured dog. Then, a puppy's chance at a forever home is threatened by an unexpected danger.
09:25 Pit Bulls & Parolees 5/2s.
Shell Shocked. Tania oversees the rescue of ten dogs left to die in deplorable conditions. Tia helps a family find the perfect companion for their special needs teenager.
10:15 My Cat From Hell 9/6s.
Guilt Stricken Guardian. Jackson needs to find a way to help a distressed cat's uncontrollable spraying. Plus, can he get a guilty guardian to stop feeding her diabetic cat lasagne?
11:05 My Cat From Hell 9/7s.
Baby The Bully. Jackson meets a bully cat who is holding all the female cats hostage, causing them to hide in the bathroom. Plus, he meets a therapy cat who volunteers for charity.
11:55 Lone Star Law 4/14s.
Back In The Wild. Game Warden Benge returns after a life-threatening injury. Along the coast, fishermen get caught with too many sharks and a protected turtle gets relocated.
12:50 Lone Star Law 4/15s.
Bucks And Bow. Boone receives an anonymous tip about a hunter who illegally shot a deer. Plus, McGee questions a man for being in possession of venomous copperhead snakes.
13:45 Animal Cribs 1/2s.
Condo Cat Creation. Antonio transforms a cramped condo for two cats and a rescue dog. His team builds personalised spaces into the furniture, and install a 20 ft climbing wall.
14:40 The Last Alaskans 1/3s.
Winter Is Coming. To prepare for the unforgiving season when temperatures drop to -50, everyone must search for the one animal large enough to feed a family through winter.
15:35 The Last Alaskans 1/4s.
Everything Is Hungry. Winter has finally arrived. While Bob deals with the ramifications of crashing his plane, Heimo must find a way to cross a newly frozen river.
16:30 Wildest Europe 1/3s.
The Alps. Discovers Europe's highest mountain range and one of its largest intact ecological ranges, home to specialised animal species including the alpine ibex and the grey wolf.
17:25 Dr. Jeff: Rocky Mountain Vet 5/8s.
Happy Couple Of Camels. Dr. Jeff helps a beloved German shepherd walk again. Meanwhile, Dr. Don has to act fast when a cat eats poison and a scared dog runs loose outside the clinic.
18:20 Wildest Europe 1/4s.
Forests and Woodlands. Explores the wildlife of Europe's astonishing woodland and forested habitats, including Europe's third largest predator, the Eurasian lynx.
19:15 Crikey! It's the Irwins 1/3s.
Giraffe Road Trip. Terri, Bindi and Robert prepare Croc One, Steve Irwin's research ship, for a special mission to release an endangered sea turtle back into the wild.
20:10 Crikey! It's the Irwins 1/4s.
Robert, King Of Cobras. Robert follows in Steve's steps wrangling Utah, a highly venomous King Cobra. A vet from the zoo's hospital, Dr. Amber, visits Tandora to treat wild Koalas.
21:05 Wild Costa Rica
Explore the incredible creatures that inhabit Costa Rica, one of the most ecologically diverse places on earth. Meet the rare and secretive ocelot and puma, and much more.
22:00 The Zoo: San Diego 2/9s.
Abigail The Incredible. Staff feel the pressure as a century-old Galapagos tortoise undergoes surgery. And, an orphan koala bear gets a special birthday surprise.
22:55 My Cat From Hell 8/6s.
Mojito Cat. Jackson deals with a young man with a genuine cat phobia, and he returns to Colorado to keep his favourite kitten from the kitten rescue road trip in her adoptive home.
23:50 My Cat From Hell 9/9s.
Ferocious Foster. Jackson meets an outdoor cat named Henery, who having been forced to live inside, has protested by soaking the place in pee.
00:45 Pit Bulls & Parolees 5/1s.
Pitch Black. A midnight rescue finds Tia, Tania and new worker Perry scrambling after an injured dog. Then, a puppy's chance at a forever home is threatened by an unexpected danger.
01:40 Pit Bulls & Parolees 5/2s.
Shell Shocked. Tania oversees the rescue of ten dogs left to die in deplorable conditions. Tia helps a family find the perfect companion for their special needs teenager.
02:30 Dr. Jeff: Rocky Mountain Vet 6/3s.
Petra's Pigs. Tigger the cat is monitored closely for unusual eating habits. Plus, Dr. Jeff cautions an owner of the perils of buying online when she brings in her unwell puppy.
03:15 Pit Bulls & Parolees 4/16s.
Season 4 Unleashed. Tia looks back at the greatest moments of the season. Plus, a look behind the scenes and updates on the dogs featured this season.
04:00 Treehouse Masters 7/5s.
Treehouse Utopia. Pete is in Utopia for a joint venture: a treehouse B&B built for romance. It will have stained glass, a bedroom - and the biggest bathroom Pete has ever built.
04:45 Treehouse Masters 7/6s.
Treetop Medieval Fortress. Pete builds a citadel fortress for a couple who loves all things medieval. A high tower will hold a round table and thrones, as well as a glass floor loft.
05:30 How Do Animals Do That? 1/3s.
Backwards Birds And Slimy Sea Creatures. High-speed footage reveals how the hummingbird can fly backwards. And, why are hagfish the most disgusting creatures in the ocean?
05:55 How Do Animals Do That? 1/4s.
Puppy Dog Tails And Crocodile Jaws. Scientists reveal what a dog's tail wag really means. Plus, what's the secret behind a crocodile's powerful jaws - and how to escape it?