TV Guide National Geographic Wild Wednesday

A horse with a mysterious nosebleed is treated by Dr. Michelle Oakley, a veterinarian with many years of experience treating animals.

Dr. Oakley participates in a race that pits people against reindeer in the vast Yukon territory in the far reaches of Northern Canada.

A pair of stubborn muskoxen, a particularly wily coyote, and a badly burned dog are treated by Dr. Michelle Oakley in the far reaches of Northern Canada.

Drones reveal that sharks are living closer to the shores than anyone would like to imagine.

A team of fearless shark scientists get hands-on with tiger sharks to find out why they are gathering in big numbers near the island of Maui, Hawaii.

Shark scientists hope to capture real-time pigmentation changes to understand how these predators manipulate their skin's dermal cells to activate camouflage.

Shark biologists have discovered a nursery of Atlantic great whites right off the coast of New York City and reveals the secret life of the baby great white.

Even the biggest, fastest and fiercest predators start as babies, as sharks have evolved in extraordinarily different ways to carry their young and give birth.

Are female sharks the ultimate rulers of the oceans?

The Thaw brings new opportunities and new dangers to Alaska's residents.

Hunt or be hunted is the name of the game during summer in Alaska.

As the weather shifts, Alaskans must adapt to harvest off of the land.

Alaskans do all that it takes to prepare for the harsh, looming winter.

Alaskans gather valuable resources for their survival on land and sea.

Winter is creeping up in the Arctic, as Alaskans scramble to prepare.

Winter descends upon the young Alaskans as they prepare for the big freeze.

It's life or death as the Next Generation battles winters wrath.

The next generation of Alaskans face Mother Nature's winter wrath.

Alaskans face unplanned challenges in the wild to survive and thrive.

Arctic temperatures dip below zero complicating the lives of Alaskans.

Hawaii is shaken by three bizarre shark attacks in less than five months.

Ten shark attacks leave visitors reeling off Florida's Space Coast, around the Kennedy Space Center and Cape Canaveral Space Force Station, in 2003.

Two unlucky ocean lovers are attacked by sharks not just once, but twice.