Fin Whales reach an adult length of between 18 and 22 metres (or 59 to 72 feet) and a weight of between 30 and 80 tonnes.
The Fin Whale is unpredictable, not known for being particularly accessible to humans, neither hesitant to approach. Its patterns of surfacing are very difficult to predict. Fin Whales blow two to five times, about 10 to 20 seconds apart. Then, they dive beneath the surface of the water, where they stay for five to 15 minutes. They may dive to depths of
about 230 metres, or 755 feet.
Typically, the Fin Whale will travel in groups of three to seven individuals, although travelling alone or in pairs is not uncommon. Where there is plenty of food available, pods of up to 100 individuals have been observed.
Where to Find Them
The Fin Whale can be found in waters all over the world. Although it generally prefers temperate waters, it is least often found in the tropics, and most often in the Southern Hemisphere. Year-round residents seem to occupy the waters of the Gulf of Mexico and the Sea of Cortez (California).
The Fin Whale is a baleen whale, which means that it feeds mainly on krill and tiny crustaceans. It might also dine on small fish and, on occasion, squid.
Pollution caused by human beings and industry is the biggest threat to the mammoth whales. There are only about 100 000 of these animals left in existence.