nzgeo.com

DQ5jg TIL penguins oil was an alternative oil product when seal oil resources were depleted on Antarctic islands
gMGe8 TIL male argonauts develop a special arm for copulation in a pouch located under their eye and upon finding a mate they detach that arm and place it on the female. Their detached arm then crawls, with a life of its own, into her mantle for fertilization. Researchers found 38 arms inside one female.