A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
The seahorse is the only fish to have a neck.
12