Unless you saw the spider bite you, that swollen, bite-looking lesion on your arm is probably something else, and blaming it on an innocent 8-legged critter might do more harm than good.

This Amoeba Sisters video starts with providing examples of prokaryotes and eukaryotes before comparing and contrasting prokaryotic cells with eukaryotic cells! Contents: 00:00 Intro 1:27 Modern Cell Theory 1:37 3 Domains (with examples...

Plants, animals, or minerals found in nature bear almost every color imaginable. There are two factors that influence what hues you see in the wild: physics and evolution. So, which colors are you least likely to see in the natural...

Scientists are learning new things by looking at the remains of exoplanets, NASA has unveiled a new spacesuit design, and engineers fixed a problem from one hundred million kilometers away.

What is the domain Archaea? Explore the archaeans with the Amoeba Sisters! This introductory video compares and contrasts characteristics of Archaea with bacteria. Time-Stamped Table of Contents: 00:00 Intro 0:47 Extremophiles 1:00...

Tourette Syndrome in popular culture is often simplified to a poorly timed foul mouth, but that’s only a small part of the story—or sometimes not part of the story at all.

No matter how much kale or spinach you eat, the bioavailability of non-heme iron doesn't increase, but the vitamin C in orange juice can actually help your body absorb more of it.

Conventional wisdom says that to win an election, you need to play to your constituencies' basest, most divisive instincts. But as a candidate for mayor of Tulsa, Oklahoma, G.T. Bynum decided to skip the smear campaigns, tell voters what...

Maybe you have a dog or cat who greets you with a sneezing fit once you walk in the door from work. Is it possible you're the problem?

We generally think of pregnancy as a continuous process, but scientists have recently discovered mechanisms that allow for certain mammals to put the development of a fetus on pause.

While the mega-banks were toppling in early 2009, Juan Enriquez took the stage to say: The really big reboot is yet to come. But don't look for it on the stock exchange or the political ballot. It'll come from science labs, and it...

An earwig is neither an ear nor a wig; it is an insect. Jessica Oreck and Rachael Teel explain how folklore gave this bug its name, combining entomology with etymology.

In which Craig Benzine tells you how we keep bureaucracy in check. So we've spent the last few episodes telling you all about what bureaucracies are and why they are formed. And throughout we've hinted about this ever-expanding power...

Last week we introduced the idea of socialization and today we’re talking a little more about how it works, including an introduction to five main types of socialization. We’ll explore anticipatory socialization from your family, the...

Astronomers have used a few different methods to detect exoplanets, and improved telescopes are increasing the rate of discovery. But is it possible that any stars DON'T have planets, or are they just an expected feature of stellar...

Researchers believe you can get reinfected with COVID-19, but we're not quite sure if that's a bad thing yet.

We are surrounded by wildlife, like pigeons and squirrels, all the time. Sadly, all those animals eventually die, but why don't we see carcasses on the street? Where do they go?

What do kangaroos, koalas, and opossums all have in common? Find out when you learn all about marsupials!

If you've been to a restaurant in the last few years, you've likely seen the words gluten-free written somewhere on the menu. But what exactly is gluten, and why can't some people process it? And why does it only seem to be a problem...

The chances of you being hit by lightning are small by comparison, but it does happen! Hank will go through what ultimately happens when you are struck by lightning because chances are you will survive to tell it to your friends.

Turns out stink bugs and cilantro have some things in common.

As spring approaches in the Northern Hemisphere, we anticipate the fluttering butterflies and the capering baby lambs, and we can also expect to see some birds hammered out of their minds in the trees, and perhaps on the ground. In most...

A white, puffy dress. Eternal love. A joint tax return. Marriage means something different to everyone and has changed over time and across cultures. Alex Gendler traces the history of getting hitched, providing insights on polygamy,...

People ask Google everything under the sun. One of the most commonly searched questions in the world is “How Can I Fall Asleep?” Allow us at SciShow to explain.