A fascinating video showing the reason why huge flocks of birds often behave the way they do. [Smarter Every Day]

A 9,500 year old burial in Cyprus represents some of the oldest known evidence of human/cat companionships anywhere in the world. But when did this close relationship between humans and cats start? And how did humans help cats take over the world? [PBS Eons]

If you get Covid-19 and recover does that mean you are immune to the virus? If you become immune, how long does that immunity last? We are still looking for answers to many of these questions. In the meantime, Dr. Seema Yasmin takes a look at the human body’s immunity to some other viral infections […]

From Reactions: The CDC is recommending that the general public wear cloth face masks to help decrease everyone’s chances of getting COVID-19. So how does the virus that causes COVID-19—SARS-CoV-2—spread? And how much could cloth face masks help stop it? We contacted some experts to find out, and to learn what materials work best if […]

What you’re about to see might look like galaxies, suns, and other scenes from space at first glance, but “As Above” features a chemical reaction captured through a lens focused on an area of just 0.3 square inch. Be sure to watch this one in full screen! As Above is a short film exploring the […]

Did you know that regular brushing and flossing might not just keep your mouth in good shape—they might also be good for your brain. [SciShow]

When you’re learning about science for the first time, it can be easier to break things down into a simpler form, and you can end up with a few misconceptions about the world. But sometimes this is the first step to understanding that things are more complex than they once seemed. [SciShow]

You might have heard that vaccine trials are currently underway in Seattle. What exactly is being tested? How much longer will these tests take? And when can we expect a vaccine against the novel coronavirus? We chat with Dr. Benjamin Neuman, one of the world’s experts on coronavirus, and Daniel Wrapp, one of the scientists […]

Send this to anyone who still thinks Covid-19 is basically the same as the flu. Covid-19, the disease caused by the coronavirus, has similar symptoms to the flu. They also spread in similar ways. So it’s natural to want to compare the two. But Covid-19 is very different, in ways that make it much more […]