National Geographic (Canada)

Dr. K treats Buddy, a baby skunk with a bloated belly.

A day of mystery unfolds at the clinic as a bearded dragon suffers a peculiar, hard-to-diagnose illness.

A guinea pig may need to have its foot amputated; Dr. K performs emergency surgery on a baby bird that can't breathe.

A snapping turtle case stumps Dr. K; a hedgehog gives Dr. T the silent treatment; a feisty pygmy goat stirs up some mischief.

Dr. K's clinic fills up with mysterious cases, including a sugar glider who isn't eating.

A bunny is rushed in after a vicious attack; a pig arrives after eating rat poison.

Darrell Ward faces a trail known as "the obstacle course"; Todd Dewey strives to clear a melting ice bridge; Alex Debogorski hauls an oversized fuel tank; Art Burke stumbles onto an ice crossing in the middle of the night.

Big Al opens a new pit and Chris' dozer gets stuck; Karl struggles to find gold after a heavy rain; Bernie pushes his plant to its limit.

Darrell Ward faces a trail known as "the obstacle course"; Todd Dewey strives to clear a melting ice bridge; Alex Debogorski hauls an oversized fuel tank; Art Burke stumbles onto an ice crossing in the middle of the night.

Big Al opens a new pit and Chris' dozer gets stuck; Karl struggles to find gold after a heavy rain; Bernie pushes his plant to its limit.

Nika and Chris face breakdowns and water problems; Ken's wife wants him home for their child's birth; Bernie's son goes AWOL.

High-speed bombing tests raise doubts about one student's place in the course.

Aircraft carrier landing is a technical test for the students.

The students start the dogfighting phase to learn how to attack.

Defensive dogfighting proves a tough test, as instructors go for the kill.

With the finish line in sight, the students face their final and big test, as they go head-to-head in a dogfight against an instructor.

The remaining students must dogfight an instructor to earn their wings; past failures mean it's their last chance to get it right.

Secrets of Pearl Harbor are revealed in wrecks of ships, subs and planes.

New discoveries reveal how a volcano killed the citizens of Pompeii.

A new discovery in the Baltic Sea reveals the story of a lost treasure.

Archaeologists on land and sea reveal secrets of the infamous Alamo siege.

Four thousand years ago, daring voyagers sail to new islands in the vast Pacific Ocean.

A lost Kingdom and an underwater cave reveal secrets about the ancient Maya.

Archaeologists on land and sea reveal secrets of the infamous Alamo siege.

Four thousand years ago, daring voyagers sail to new islands in the vast Pacific Ocean.