Charles Darwin encountered a tiny fox-like creature during his famous voyage but instead of discovering its fascinating evolutionary story, he just knocked it on the head with his geology hammer.

6 Surprising Blood-Drinking Animals

There are plenty of creatures out there with only one opening to handle both taking in food and getting rid of waste. But there’s at least one animal out there that doesn’t have a gut opening… at all. How does that even work?!

Not all non-native species are totally terrible! Here are six of them can actually do more good than harm.

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There are plenty of creatures out there with only one opening to handle both taking in food and getting rid of waste. But there’s at least one animal out there that doesn’t have a gut opening… at all. How does that even work?!

Hank introduces us to 6 blood-drinking (or otherwise consuming) animals that you may not be aware of. Don't freak out... Chapters VAMPIRE BAT 1:35 LAMPREY 1:52 HOOD MOCKING BIRD 2:20 THE VAMPIRE FINCH 2:46 BUTTERFLIES 2:56 HUMANS 3:22

It's a rematch Battle of The SciShow Hosts on today's quiz show! Will Olivia be victorious again or will Hank "try those logarithms" and win the day?

Today's extraordinarily depressing dose comes to you in honor of Lonesome George, the world's last Pinta Island tortoise, who passed away earlier this summer - Hank brings us the stories of five more extremely rare animals who may be...

Paul Andersen reviews the major within the first unit on natural selection. He starts by defining evolution and explaining how evolution can occur in a population. He reviews the population genetics and camouflage lab. He reviews...

Paul Andersen explains how life has evolved and continues to evolve today. A brief discussion of artificial, natural and sexual selection is included. The beak of the finch is used to explain how directional selection is achieved.

Think of penguins as ocean sentinels, says Dee Boersma -- they're on the frontlines of sea change. Sharing stories of penguin life and culture, she suggests that we start listening to what penguins are telling us.

Hank explains speciation - the evolutionary process by which new biological species arise - in terms of finches, ligers, mules, and dogs.

Paul Andersen describes pieces of evidence that Charles Darwin used to support the idea of evolution and his process of natural selection. He begins with the following evidence use in the Origin of Species; artificial selection,...

Interactions between species are what define ecological communities, and community ecology studies these interactions anywhere they take place. Although interspecies interactions are mostly competitive, competition is pretty dangerous,...

She's one of San Diego Zoo's oldest residents.

It's not often they get to enjoy such a sweet treat.

You have 20 seconds and only a few hints. Test your animal IQ.

Learn all about these incredible creatures, including how much a 100+ year-old tortoise weighs, and how the "Finch response" plays an important role in tortoise health.

She's one of San Diego Zoo's oldest residents.

Dive into the life of Goliath, one of the world's largest Galapagos tortoises, and learn about the species' journey from near extinction to conservation success.<br/>

The Galapagos Islands are a unique and biodiverse paradise, home to fascinating wildlife that cannot be found anywhere else in the world. From the iconic Galapagos tortoises to the only species of penguins living north of the equator,...

Exploring the Galapagos Islands:Our journey concludes in the tropical paradise of Ecuador, where we'll explore the enchanting Galapagos Islands. Get up close and personal with the unique fauna and vegetation of this remarkable...

Find out how Charles Darwin changed the world!
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Life processes - Living things in their environmen
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Learning Points
Charles Darwin proposed the theory of evolution in


his...

The Galápagos Islands are a province of Ecuador, let's learn about it!