Dr. Tristan Guttridge believes hammerhead sharks can reach monster sizes by hunting other sharks; they try to prove it by getting tissue samples from some of these large sharks.

Monster Hammerheads: Killer Instinct

The Canopy Cat Rescue crew saves cats that are stuck in trees.

Treetop Cat Rescue

The Alaqua Animal Refuge in Walton County, Fla., works with members of law enforcement to investigate anonymous tips, execute raids and rescues, and build cases to bring abusive animal owners to justice.

Animal PD

Veteran polar bear guide Dennis Compayre goes on a remarkable journey, providing a rare and intimate glimpse into the world of a polar bear mom and her newborn cubs as they leave the safety of their den for the first time.

Kingdom of the Polar Bears

Environmental topics range from nature and children to green jobs and improving the quality of life.

Ecosense for Living

An international team of paleontologists investigates a 150-million-year-old cold case; fifteen giant dinosaur skeletons lie buried in a remote corner of Wyoming's badlands; the team's mission is to discover why they were here and what killed them.

Jurassic Ghost Town: A Mass Murder Mystery

Planet Healers

Dr. Craig O'Connell and Andy Casagrande travel up the Serena River in Costa Rica to investigate why young bull sharks travel up the river and how they avoid predation by the crocodiles inhabiting it.

Jungle Shark

Outback Adventures

A countdown of the 50 greatest Shark Week moments of all time during Shark Week's 30th anniversary celebration, with Craig Ferguson, Tracy Morgan, Andy Samberg, and others.

Shark Week's 50 Best Bites

Neuroscientist Dr. Jack Lewis gives fascinating insight into how the brain works.

Secrets of the Brain

The eternal conflict between predator and prey plays out on a series of diverse backdrops around the world; the changing nature of the environment can tip the odds in favor of either the hunter or the hunted.

Animal Battlegrounds

Shark attack survivor Paul de Gelder attempts to get attacked by a shark again; under the supervision of experts, Paul provokes sharks to attack him in multiple scenarios, where they bite and tear off prosthetic limbs to teach life-saving tactics.

How to Survive a Shark Attack

Adam Devine and a team of marine biologists deploy a CATS camera tag on a massive tiger shark, and it yields a surprising scientific discovery; a secret tiger shark lair.

Adam Devine's Secret Shark Lair

Police officers share the stories of their career-making cases.

Solved

Nature's events at nature's pace; a compilation of eye-catching sunrises, sunsets, storms, animal behaviors and migrations from stunning and evocative landscapes across our planet.

BlueMarvel

Warm, cold, rich and murky water collide along South Africa's rocky coast to create "shark central," with great whites, tiger sharks, bull sharks, ragged tooth sharks and whale sharks all reigning supreme in the waters.

Big Sharks Rule

Once extinct, species can never come back-until now. Scientists use cutting-edge genetics to revive extinct species, raising ethical questions about humanity's role in nature's balance.

De-Extinction: Species Protection 2.0?

Soldiers for hire trained to handle hostile environments.

Shadow Force

Shark expert Ralph Collier and Brandon McMillan investigate why great white sharks are traveling so far north to take up residence in the waters off the Pacific Northwest.

Wrath of a Great White Serial Killer

Up-close with some of the planet's most amazing animals. Enter a world of unique creatures from Asia, Africa and the Americas.

Darwin's Amazing Animals

Kate McIntyre from Dogs Trust in the UK meets puppies who are being trained to perform vital jobs in the community.

Project Puppy

Alison Towner and her team investigate a new great white-hot spot off the coast of South Africa; it is equipped with cutting-edge fin cameras, tracking tags and underwater surveillance; researchers unveil unusual behavior in these great whites.

Great White Danger Zone

Spanning the globe to catch the naughtiest pets in action.

Bad Dog!

Robert Irwin comes face to face with a great white shark for the first time with shark conservationists Paul de Gelder and Madison Stewart; following in his father's footsteps, he will get as close as possible to these incredible creatures.

Crikey! It's Shark Week

From mysterious canyons carved by ancient floods to the hidden remains of massive volcanic eruptions, geology professor Nick Zentner crisscrosses Washington unearthing the untold stories of the state's most beautiful landscapes.

Nick on the Rocks

"Mega Machines" unlocks the secrets of iconic machines, such as roller coasters, bullet trains and cargo planes, which transform our understanding of the machines around us.

Mega Machines

Neuroscientist David Eagleman explores why humans feel and think.

The Brain With David Eagleman

Earth Odyssey

Animal clips from across the pond, including kittens appearing to talk and dancing dogs.

America's Cutest Pets

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