The North Atlantic Fin Whale

(Balaenoptera physalus physalus)

The North Atlantic Fin Whale is one of Earth’s most majestic and far-traveling marine mammals — a true giant of the ocean, second only in size to the Blue Whale. Sleek and powerful, adults can reach up to 25 meters (82 feet) in length and weigh as much as 80 tons, yet they move with remarkable grace through the open sea.

Fin Whales are often called the “greyhounds of the sea” for their speed, capable of reaching over 35 km/h (22 mph). They are identified by their asymmetrical jaw coloration — white on the right side and dark on the left — a unique feature among all whale species.

Habitat and Migration

In the North Atlantic Ocean, Fin Whales range from the cold Arctic waters of Greenland and Iceland to the warm temperate seas near the Azores and the Caribbean. They undertake long annual migrations, feeding in northern, nutrient-rich waters during summer and traveling south to breed and calve during winter.

Feeding and Behavior

Fin Whales are filter feeders, consuming tiny prey such as krill, copepods, and small schooling fish. With each gulp, they can take in up to 70 cubic meters of water, using their baleen plates to filter food from the sea. Despite their size, they are often seen alone or in small groups, communicating through low-frequency calls that can travel hundreds of kilometers underwater.

Conservation Status

Once heavily hunted, Fin Whales were driven to the brink of extinction during the 20th century. Thanks to international protection and the ban on commercial whaling, their numbers are slowly recovering, though they remain listed as “Vulnerable” by the IUCN Red List. Today, they face modern threats such as ship strikes, ocean noise, climate change, and plastic pollution.

A Symbol of the North Atlantic

Fin Whales are vital to the health of the ocean ecosystem — their presence helps regulate marine food webs and even supports carbon capture by enriching surface waters with nutrients. As they journey across the North Atlantic, they connect continents, ecosystems, and people.

Through conservation, research, and awareness projects like the The Fin Whale Eclipse Project, we celebrate and protect these extraordinary beings — living reminders of the vast, interconnected life beneath the waves.