Fin whale, balaenoptera physalus, part of the rorquals family.
Fin whales are very endangered with 100,000 in the wild.
They have a lifespan of about 90 years.
They live in deep, offshore waters of all the major oceans.
They have bodies that are streamlined for movement through water and
they have flippers for steering.
Fin whales are carnivores and they hunt krill, fish, and squid.