I taught an octopus piano (It took 6 months) [video]

Cephalopods are the most highly evolved species living on planet Earth. They survived the first surface extinction. They'll survive the second. No wonder they prefer staying down there. Disclaimer: I had a wild dream in jail one night that made me reconsider some notions about...

Surface oceans will disappear in about a billion years. More life must go pretty deep underground to survive longer.