In the court of the Jade Emperor, a young princess had a special skill: she could pluck clouds from the sky and spin them into the softest robes. But her craft was the same day after day, and she longed for new inspiration. So the Queen...

This jellyfish might look kind of unassuming, but it's got some surprising long-range weaponry to catch its prey!

Join Jessi and Squeaks to learn all about an amazing aquatic mammal you may not have heard of before: the manatee!

Several cultures portray the world as being carried on the back of a giant turtle. As it turns out, sea turtles really do house an entire world on their backs — one of microscopic organisms, that is!

From the world’s biggest land animal to a creature built more like a tank than a sub, meet seven mammals that you might not think can swim well, but do!

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All octopuses start out as teeny, tiny plankton, and most grow up to settle down on the seafloor. The blanket octopus, however, never settles down, and spends its life wandering the open ocean.

Join Squeaks for one of his favorite episodes all about RATS! You'll get to play a few rounds of true or false to learn some interesting facts about these furry creatures!

Explore how substances travel in diffusion with the Amoeba Sisters! This video uses a real life example and mentions concentration gradients, passive transport, facilitated diffusion, and explains why diffusion is critical for all...

Our month-long exploration of human reproduction continues with a look at testicular anatomy, the steps of sperm production, and how it's influenced by gonadotropin and testosterone. Hank also explains how sperm mature, and how...

It's not just chlorine that irritates your eyes in a pool. It's actually something a lot more disgusting

Also known as cercarial dermatitis, swimmer’s itch is more than just an annoying rash…

Birds fly, and fish swim. We learn this when we are children. But not everything in nature is quite so simple… Meet Limacina helicina, an artic-dwelling sea butterfly that flies through the water.

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Dolphins aren't just smiley and cute! Jessi gives you 5 reasons why dolphins are awesome in this episode of SciShow Kids.

We’ve invented airplanes, trains, automobiles and so much more to ease the process of traveling. But many animals have adapted their own techniques for energy efficient travel that don’t require invention!

Jessi and Squeaks are back from their research trip and ready to keep learning with all of you! And on their trip back to The Fort, Jessi thought up a really interesting questions: how do animals find their way home?

You probably don't consider algae to be super aggressive, but 66 million years ago had to turn to murder in order to survive.

Jessi and Squeaks adopted a new fish! They have him all set up in a nice fish tank, but now they have a big question: how do fish breathe underwater?!

What's your sign? In Western astrology, it's a constellation determined by when your birthday falls in the calendar. But according to the Chinese zodiac (__), it's your shuxiang, meaning the animal assigned to your birth year. And of the...

Waddling along the parched Australian earth, a female platypus is searching for fresh water. Over the past year, a severe drought turned rivers and streams to mere trickles. She barely survived and was unable to reproduce. Could the next...

Sharks are fascinating creatures with cool teeth, awesome scales, and there are over 450 kinds of sharks! Join Jessi and Squeaks to learn some super shark facts!

New ReviewImprove your English with our original drama series. In this episode, you’ll hear real English conversations, learn everyday expressions, and practice listening comprehension in a fun, story-driven format. For learners at the...

Welcome back to the second episode of our new format for Bizarre Beasts, which we're calling Season Zero. Over the next year, we will be remastering episodes of Bizarre Beasts that were originally created for Vlogbrothers.

You will solve real-world application problems modeled by inequalities.

Many people presume that all members of Chordata have a backbone, but that actually is not true. Vertebrates have backbones, meaning members of subphylum Vertebrata. There are two other subphyla within Chordata, those being...