To animals and plants
They are related to clams and oysters.
Other dogs are loosely related to poodles.
gorilla
no they are not
The coccyx forms a really short tail in humans. It is related to a regular tail in other animals that have them.
.........................
birds
the over gekoes and other animals
Ring-tailed lemurs are related to sloths.
Rattlesnakes are vipers so would be related to any other species of viper elsewhere in the world.
Piranhas are in the subfamily Serrasalminae. Other fish that are in this subfamily and that are closely related to the Piranha are Pacu and the Silver Dollar