There are 6 species of dolphins and porpoises on the
endangered list. To keep the dolphins warm they
have an access layer of blubber. The biggest dolphin
is the killer whale. Killer whale calves are about 8 feet
long at birth. and can grow to over 20 feet long.
Bottlenose dolphins are about 3 1/2 feet long at birth
and grow to 8 or 9 feet long.
