Gesamtlänge aller Episoden: 3 days 9 minutes
A snake. A ray. A shark. They each got pregnant with no male involved.
Itch used to be understood as a mild form of pain, but scientists are learning this sense is more than just skin deep.
Life as we know it needs water, but scientists can’t figure out where Earth’s water came from.
A cell is alive. So is a leaf and so is a tree. But what about the forest they’re a part of?
The researcher who popularized the idea of the alpha wolf has spent decades trying to take it back.
Solar storms can wreak havoc on power grids, satellites, even astronauts — but scientists still struggle to predict them.
Diagnosing diseases like endometriosis can require difficult steps, like surgery.