In the days leading up to Dr. Michelle Oakley's work at a Yukon sled dog race, she handles a variety of patients, including some very fast sled dogs. On race day Michelle plunges in, examining a long stream of athletic dogs.

The Quebec caribou population is on the brink of extirpation, and veterinarian Michelle Oakley flies in to help save it.

Tragedy strikes the Oakleys’ own backyard when a coyote attack puts Willow’s goat in critical condition.

Pregnancy checks, baby animals and mud bogging, mean one thing to veterinarian Michelle Oakley'spring has sprung in the Yukon!

As spring arrives, the animals of the Yukon are becoming more active. Dr. Oakley is on the move too, heading to treat juvenile eagles with debilitating burns.

Winter weather in the Yukon has come, and the cold temperature brings in some serious work for Yukon veterinarian Michelle Oakley.

This week Dr. Oakley is tasked with performing a risky surgery on a reindeer that may not make it through the winter.

It's the end of the summer in the Yukon, time for many animals to go into rut. However, a few animals of Dr. Oakley's are a little slow to start the process.

Dr. Oakley works in some of the most remote areas of the Yukon, But this time, she's headed to the big city — Anchorage, Alaska with her daughters..

Michelle is squaring off with masses of animals to track down her patients — starting with a herd of precious bison in Alaska.

Dr. Michelle Oakley covers thousands of miles as she tends the Yukon's animal population; she treats a 300 pound yak and a golden eagle.

This week, Dr. Oakley’s house calls consist of a string of scary visits that ultimately send two people to the hospital.

A baby boom has hit the Yukon Territory, and for Dr. Michelle Oakley that means helping a weak cow deliver an oversized calf, delivering puppies and treating a pregnant goat.

Dr. Oakley helps with the birthing season in Alaska, where she witnesses a rare reindeer delivery, nurses a baby moose back to health and neuters a wolverine.

Dr. Oakley treats a sled dog with a face full of porcupine quills and a baby moose with life-threatening indigestion.

Dr. Oakley works around the clock to round up a pack of rogue horses, solve a miniature horse’s medical mystery and give eight sled dog puppies their first exam.

In the Yukon, Dr. Oakley helps a young caribou with fast-growing, giant warts on his face and a mountain goat with a life-threateningly mangled foot.

In Alaska’s backcountry, Dr. Oakley has to castrate a Himalayan yak, sedate a sick lynx and, unexpectedly, help a hairless cat with a dangerous injury.

Visiting a reindeer herd; a moose has a giant belly.

Dr. Oakley tends to baby-related needs in Alaska.

Dr. Oakley pays a visit to various Alaskan pooches.

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Dr. Michelle Oakley, a veterinarian in one of the most rugged environments on Earth.