Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Only 3% of bird species have penises.
0
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Cows can sleep standing up, but they can only dream lying down.
745
Parrot parents "name" their children with a signature call.
112
The seahorse is the only fish to have a neck.
12