Fin whale, common rorqual
Fin whales are the second largest animal in the world - only blue whales are larger.
May be two - Northern and Southern.
Fin whales can be up to 26m long (Northern Hemisphere population is smaller), and weigh 30-80 tonnes.
Fin whales are brown/grey above and white on their undersides. Their lower lip is white and the rest of head is black or grey. They have a greyish-white chevron mark on their backs, and a single longitudinal ridge on the head. The fin slopes back.
Fin whales have a worldwide distribution, but they are not common in tropical seas and polar seas with ice.
Fin whales feed on a variety of planktonic animals as well as crustaceans, squid and fish.
Fin whales tend to live in groups of 3-7 individuals, but can sometimes be found migrating in groups of 300.
Fin whales are classified as Endangered by the 2000 IUCN Red List. Global threats include hunting, prey depletion, pollution and collisions with vessels.