Parrot parents "name" their children with a signature call.
112
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20