Topic: biology

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Why Is The Very Hungry Caterpillar So Dang Hungry?

Monarchs are ravenous for milkweed. California pipevine swallowtail caterpillars want lots of pipevine. Why are these very hungry caterpillars so hungry? “Caterpillars have to store up incredible reserves of prote...

The elusive Bipes biporus, Baja’s ‘worm lizard’

Long like a small snake, bright pink like an earthworm, and usually burrowing underground with the help of two tiny front legs, the Bipes biporus is an elusive lizard endemic to the Mexican peninsula of Baja Californi...

Hummingbirds fly, shake, and drink in slow motion

First shared in the National Geographic feature A Mesmerizing Look at Hummingbirds in Flight, this high-speed video footage by Anand Varma captures these "perfect flying machines" as they fly, shake, and drink. The sl...

Witnessing butterflies emerge at the California Academy of Sciences

Within the California Academy of Sciences' rainforest exhibit, butterflies and moths emerge from their chrysalis and cocoons in a specially designed emergence display. Biologist Tim Wong shows how they set up the clim...

How do baby flamingos become pink?

Watch as downy gray flamingo chicks are fed bright red milk, a sort of crop milk made from either parents' upper digestive tracts. As the chicks grow, they develop their signature pink feathers, as well as adult bills...

The world’s largest collection of whale bones

The world's largest collection of whale bones—sperm whale, gray whale, massive blue whales—and a bunch of ancient whale fossils from extinct species are stored in this warehouse in Maryland. It's a whale bone warehous...

Chaser, the Border Collie that can understand 1022 words (or more)

Border Collies are known to be super smart and disciplined dogs that can take detailed verbal commands while herding sheep and performing other helpful tasks. How many verbal commands can they understand? This demonst...

Colorscope, an exploration of color across cultures

How do different cultures perceive and use color? Colorscope touches upon those perceptions and uses throughout history in this series of videos from CNN Creative, written and narrated by British art historian and bro...

A window into ladybug wing origami

Beneath a ladybug's red shell, the spotted elytra that it's known for, the beetle's hind wings are efficiently folded until it wants to take off and fly. When it lands, the wings simply fold back up into a protected p...

How to change anxiety into excitement

Starting at a new school, performing in a recital, riding a rollercoaster, playing against a tough team, taking a test... there can be so many times when we might feel worry, anxiety, and stress about a task or experi...

A blue whale lunges for krill

How can the largest creatures on the planet survive by almost exclusively eating some of the smallest creatures in the sea? In this video from Oregon State University, we get a very rare look at how blue whales eat ti...

A pacific razor clam burrows rapidly into the sand

Watch as a pacific razor clam (Siliqua Patula) rapidly burrows into the sand with its large foot. When it's almost completely buried, it ejects spouts of water, a reaction that a variety of razor clams are known for. ...

How Do Pelicans Survive Their Death-Defying Dives?

Unlike American White Pelicans, who scoop up fish at the water's surface, California’s brown pelicans rocket down from the sky, plunging toward the ocean from as high as 65 feet. This episode of Deep Look explains how...

The three different ways mammals give birth

All mammals share certain characteristics, like warm blood and backbones. But despite their similarities, these creatures also have many biological differences — and one of the most remarkable differences is how they ...

Each Tree Is Its Own Adventure: Climbing giant sequoias for science

Among the planet's longest-living organisms—3,000+ years and growing—giant sequoias (Sequoiadendron giganteum) can seem pretty indestructible. They're thought to be mostly disease, fire, and drought resistant thanks ...

Why peregrine falcons are the fastest animals on earth

Peregrine falcons are the fastest animals of the land—and it's no wonder, their bodies are built for speed. While cheetahs can run up to 70 mph on land, peregrine falcons can dive at speed of over 200 mph. That's fast...

Oxygen’s surprisingly complex journey through your body

Oxygen forms about 21% of the air around us. In your body, oxygen forms a vital role in the production of energy in most cells. But if gases can only efficiently diffuse across tiny distances, how does oxygen reach th...

How the food you eat affects your gut – TED Ed

The bacteria in our guts can break down food the body can’t digest, produce important nutrients, regulate the immune system, and protect against harmful germs. And while we can’t control all the factors that go into m...

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