This one-pound bunny, called a pygmy rabbit, gets into a high-speed chase with a long-tailed weasel.

In Mexico's Gran Desierto de Altar desert, a fringe-toed lizard outruns a sidewinder rattlesnake.

North America's incredible sights and sounds come to life in our split-second highlight reel.

The amazing sights and sounds of North America's savage coasts come to life in our split-second highlights real.

Meet some of the world's rarest amphibians, housed inside the frogPOD. Did you know that up to half of all frog species could be gone in the next 20 years?

Follow the Racing Extinction team as they test a new camera that records carbon dioxide emissions in infrared.

The Cornell Wild Acoustical Laboratory has been collecting animal sounds since the 1930s. Among their collections are animals that have gone extinct.

Scientists and experts explain the effect that skyrocketing carbon dioxide levels are having on our oceans and coral reefs - and why it matters.

Humans are rapidly driving many species to extinction. Hear the song of the last Kauai O’o bird and learn more about what is causing these mass extinctions.

The biggest factor in mass extinction is converting natural animal habitat to land used for food production. See how our way of producing food is contributing to a major pollution problem.

A team of artists and activists expose the hidden world of extinction with never-before-seen images that will change the way we see the world. Watch Racing Extinction with the world Wed Dec 2 9/8c.

Shawn Heinrichs recalls how he rescued a manta ray that was caught in a fishing line.

Will future generations look back on this time period as the time when we allowed all these amazing creatures to vanish? Dr. Jane Goodall believes education is the key to beating mass extinction.

Meet the team behind Racing Extinction -- undercover filmmakers working to save vulnerable species and helping combat the mass extinction currently unfolding.

Sharks have survived 4 mass extinctions and ruled our oceans for over 400 million years, yet humans have caused their population to decrease by 90-99% in the past 100 years.

Watch the inspiring story of how photographer Joel Sartore and the Audubon Society are helping save a rare sparrow teetering on the brink of extinction due to habitat loss.