symbiosis

Mystery of Sloths’ Tri-Weekly Poop Trips Solved?

Three-toed sloths are so, well, slothful, that they come down out of their tree canopy homes only once every three weeks, to go to the bathroom. Part of the reason for the limited time in the loo is that dumping ...

Glowing Bacteria Control Squid Hosts

Being jolted awake every morning by an alarm clock is plenty annoying, but at least that alarm doesn’t actually live in your body. The Hawaiian bobtail squid (Euprymna scolopes) has an internal alarm clock that’s run by a ...

Glowing Bacteria Control Squid Hosts

Being jolted awake every morning by an alarm clock is plenty annoying, but at least that alarm doesn’t actually live in your body. The Hawaiian bobtail squid (Euprymna scolopes) has an internal alarm clock that’s run by a ...