4 Animals That Don’t Have Resident Gut Microbiomes

From SciShow. We humans couldn’t live without our gut microbes, but not all animals rely on microscopic digestive communities like we do. And understanding why these animals ditched their microbial partners can teach us a lot about the costs and benefits of making evolutionary friends. Hosted by: Michael Aranda SciShow has a spinoff podcast! It’s…

The Virtually-Unkillable Virus That Makes Itself a Nucleus

From SciShow. In 2017, scientists discovered what appeared to be an unkillable virus that does something very un-virus-like… it builds its own nucleus inside its host’s cells! Hosted by: Michael Aranda SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at http://www.scishowtangents.org ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow…

Why Do Bats Carry So Many Dangerous Diseases?

From SciShow. Bats are amazing and not just because they’re the only mammal that can fly! But they also carry a lot of diseases that are dangerous to humans, and while that is definitely not their fault, there is actually a lot we can learn from their unique immune systems. ———- Huge thanks go to…

The Wild Reasons Many Older People Wake Up So Early

From SciShow. You might think your grandma who wakes up at 4am just needs less sleep than younger people. Not so! Studies suggest there are some bizarre reasons older people rise at the crack of dawn, including something called brain sand! Hosted by: Hank Green SciShow has a spinoff podcast! It’s called SciShow Tangents. Check…