Cats recognise the voice of their owner, but never evolved to care.
22
Jellyfish as a species are actually older than dinosaurs and sharks.
383
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Elephants are terrified of Bees and actually have a special, distinct vocalization for “Run away the Bees are angry”
49
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
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
A scorpion can hold its breath for up to 6 days.
19