Topic: biology

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Why Warm Blood is Better Than Cold – Rise of the Mammals

What does a tiny Hadrocodium wui fossil tell us about the evolutionary advantages that mammals were developing before the Cretaceous–Paleogene mass extinction event that finished off the dinosaurs 65 million years ago...

Chameleons are Amazing – National Geographic

We've enjoyed quite a few chameleon videos, but this National Geographic video is not only full of fascinating information, it's visually stunning. From how they shoot their tongues like arrows to catch bugs, to how t...

ScienceTake – How the Octopus Moves

How do you move from here to there when you have eight long, flexible legs that radiate out from your head? After analyzing recordings of how an octopus moves, three Israeli researchers have determined something prett...

How do you find water bears (tardigrades) in the wild?

Tardigrades (also called water bears or moss piglets) refer to over 1,150 species of microscopic aquatic animals that can be found in moss, ferns, lichens, soil, beaches, dunes, and other damp habitats all over the pl...

What Happens When You Put a Hummingbird in a Wind Tunnel?

Most hummingbirds weight less than a nickel. Hummingbirds have the highest metabolism of any warm-blooded animal. They are the only birds that can fly sideways and backwards. They hover expertly, too. These are just s...

The One Year Mission in Space: Kelly & Kornienko arrive on ISS

On March 27, 2015, American astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko took off for the International Space Station in the Soyuz spacecraft for a historic One Year Mission, twice the length of an av...

Veritasium: How (and Why) Do Chameleons Change Color?

There is a misconception about chameleons... that they change their color in order to blend in with their environment. That is actually not the case... So why do chameleons change color and how are they doing it? ...

Deep Look: Banana Slugs and Secret of the Slime

Slime can trigger an immediate ewwwww! reaction, but ooey gooey slime is actually a rather brilliant, problem solving substance. One of the animals that depends on its slime can be found among the gigantic redwood for...

AMNH: Shelf Life – Skull of the Olinguito

How was a ninety year old specimen "hiding in plain sight" before it was rescued from storage at The Field Museum and celebrated in 2013 as a newly-identified species? This episode of The American Museum of Natural Hi...

AMNH: Shelf Life – Six Ways To Prepare a Coelacanth

The Coelacanth, pronounced see-luh-kanth, is a prehistoric-looking fish that scientists thought had gone extinct 66 to 80 million years ago, until one was discovered in a fisherman's haul near the Chalumna River by So...

The Fantastic Fur of Sea Otters – Deep Look

Sea otters are creatures who live in water that's far too cold for their bodies. There are other animals, like whales and sea lions, that are insulated from the cold by blubber, a layer of fat under their skin, but as...

TED Ed: The benefits of a good night’s sleep

Sleep to remember! Remember to sleep! This TED-Ed focuses on those of us who are studying for tests or staying up late for deadlines, but The Benefits of a Good Night's Sleep can also help younger kiddos understand wh...

AMNH: Shelf Life – Turtles and Taxonomy

The science of classification, specifically the biological taxonomy of organisms, organizes how humans see and study the life that surrounds us. For museum-goers, observing a turtle skull, seaweed leaves, or a cabinet...

AMNH: Shelf Life – 33 Million Things

What if you could open up a drawer full of hundreds of pinned insect specimens to study them under a microscope, or unscrew the jar cap to scan a curious creature that swam in the deep sea decades ago? For collectors ...

How do wounds heal & how do scars form?

What happens when we get cut and bleed? How does skin scab over and heal? And why does skin scar? These two new vocabulary-filled TED-Eds from Sarthak Sinha get deep under our skin to give us a better understanding of...

Pygmy Seahorses: Masters of vibrantly-colored coral camouflage

The vibrant colors of thumbnail-sized Pygmy Seahorses have always been aligned with the brilliant oranges or purples of the Gorgonian sea fan corals that they're found camouflaged with, but until biologists at San Fra...

The Animal That Wouldn’t Die: The Hydra

Just a few millimeters long and full of embryonic cells, the hydra is a small and mysterious cnidarian polyp that seems to defy mortality. Skunk Bear's Adam Cole and Robert Krulwich team up to tell the amazing tale of...

NOVA PBS: Immunity and Vaccines Explained

Why do we get shots when visiting the doctor? How do vaccines work with our immune systems to keep us from getting sick? From NOVA PBS: Immunity and Vaccines Explained. Our bodies are bombarded by bacteria and ...

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