Topic: biology

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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...

The differences between a living and a dead sand dollar

How can you tell if a sand dollar is dead or alive? Sand dollars are flat sea urchins that burrow into the soft sand. When alive, their undersides are full of "velvet-textured spines" covered with cilia, a latin word ...

Cell division in a frog egg, a microscopic time lapse video

In a feat of DIY time lapse filmmaking at a microscopic scale, wildlife filmmaker and photographer Francis Chee captured the cell division of a Rana temporaria common frog egg. Watch it transform from a few cells to.....

How to practice effectively…for just about anything

Mastering any physical skill takes practice. Practice is the repetition of an action with the goal of improvement, and it helps us perform with more ease, speed, and confidence. But what does practice actually do to m...

Why Does Your Cat’s Tongue Feel Like Sandpaper?

If you've ever been licked by a cat, did their tongue feel scratchy like sandpaper? The scratchiness is caused by their keratin papillae, tiny claw-like spines on their tongue that help to clean their fur. Cats (Felis...

An up close look at fingerprints and sweat glands

Zoom in to see this fingertip's epidermal ridges, those tiny lines, whorls, loops, arches, and valleys that are unique to each person on the planet. This macro and time lapse footage, filmed by Time Lapse Vision, an i...

The science of milk

Milk is poured into cereal. We might want milk for our cookies or hot chocolate. We can use milk to bake. It's usually in our cheeses, butters, and ice creams. Milk is often the first thing we drink as newborn babies....

What to Expect From an Expecting Seahorse

Although it's well known that seahorses and their cousins the pipefish are the only vertebrates where males become pregnant, researchers have only begun to understand how this unique adaptation works. By studying the ...

The toy-inspired Paperfuge, an innovative new tool in healthcare

Bioengineer and Stanford researcher Manu Prakash has developed another inexpensive scientific device. The Paperfuge is a hand-spun, ultra low-cost, paper and string centrifuge that was inspired by the ancient whirligi...

The World’s First Poo Museum

How might you preserve scat -- an animal's fecal dropping, poo, or poop -- for the world's first poo museum? ...or pooseum? In this BBC Earth Unplugged episode, Maddie Moate visits with Daniel Roberts, co-founder ...

Crafting Cell Diagrams

Create your own cells with science enthusiast and STEM education advocate Ella K. Chan. In 2013, at the age of 12, she began sharing science activities for kids on her Sci Files YouTube channel. In this activity, she ...

Dinosaur’s Feathered Tail Found Remarkably Preserved in Amber

This incredibly well-preserved, feather-covered dinosaur tail was found by Beijing-based paleontologist Lida Xing in a northern Myanmar (Burma) amber market. The find is a first: Skeletal material from a dinosaur has ...

Can you power your home with a bicycle?

Could you power your house with the energy that's created from pedaling a bicycle? First, let's find out how much energy a house uses and how much energy one bicycling person can store in a battery. Skunk Bear's A...

You Can’t See This (Mind Tricks)

Our brains and eyes aren't always showing us everything that's available to see. Instead, learning, memory, and expectation changes our vision to fit as much as we can comprehend in any given moment. In this AsapScien...

The Fungi in Your Future: Mushroom leather, furniture, and more

Mushrooms come in a wide variety of species, they recycle dead plants which helps to create nutrient soil, and they can be turned into food, furniture, packaging, leather, and more. Enter MycoWorks, a team of engineer...

The Snail-Smashing, Fish-Spearing, Eye-Popping Mantis Shrimp

The mantis shrimp is a fascinating creature. One kind impales prey with a spear-like appendage and another smashes prey with a built-in club — the fastest attack in the animal kingdom. "At 30 times faster than the bli...

Slow Loris Conservation in Vietnam

Take a closer look at the slow loris, specifically the Bengal slow loris and the Pygmy slow loris in Vietnam. Large-eyed, arboreal, and solitary, these nocturnal primates face declining populations due to trapping and...

Can bumblebees teach each other to pull a string?

This worker bumblebee has been taught that if she pulls the string, she'll be able to get to the artificial blue flower's sucrose solution center. Scientists from the Bee Behavioural and Sensory Ecology Lab at Queen M...

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