# Fin Whale (*Balaenoptera physalus*) The Fin Whale is one of the largest animals in the ocean! They are gentle giants that love to swim and explore the deep blue sea. - **Category:** [Mammals](https://www.snappit.app/explore/categories/mammal) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Also known as:** Common Fin Whale, Finback Whale ![Fin Whale](https://res.cloudinary.com/drieglelr/image/upload/v1771424659/objects/4515.jpg) ## Appearance The Fin Whale is a sleek, streamlined whale with a dark brownish-grey back and a white belly. It has a distinctive asymmetrical jaw coloration, with the right lower jaw being white and the left side dark. A light chevron pattern is often visible behind its head. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Chordata - **Class:** Mammalia - **Order:** Cetacea - **Family:** Balaenopteridae - **Genus:** Balaenoptera ## Interesting facts - A Fin Whale's heart is about the size of a small car, pumping blood through its giant body! - Called the "greyhound of the sea" for its incredible speed, it's one of the fastest whales! - These giants can eat up to 2,000 kilograms (4,400 pounds) of tiny krill every single day! - They have a unique asymmetrical coloration, with a white right lower jaw and a dark left one! ## Special abilities - **Ocean Filter:** Fin Whale has huge baleen plates that help it filter massive amounts of tiny krill and fish from the water. - **Deep Song:** Fin Whale can make very low-pitched sounds that travel hundreds of miles underwater to communicate with other whales. ## Measurements & details - **Length:** 1800-2400 cm - **Weight:** 40000-80000 kg - **Lifespan:** 70-90 years - **Speed:** 40 km/h - **Litter Size:** 1 - **Gestation:** 330-365 days ## Diet & Feeding Fin Whales are filter-feeders, scooping up tons of tiny ocean creatures to eat. - **Primary Foods:** Krill, Copepods, Herring, Capelin - **Foraging Method:** Filter feeding ## Ecological connections - **Eats:** Antarctic Krill (*Euphausia superba*) — a primary food source in cooler waters. - **Eats:** [Atlantic Herring](https://www.snappit.app/explore/atlantic-herring) (*Clupea harengus*) — small schooling fish that are prey. - **Eaten by:** [Orca](https://www.snappit.app/explore/orca) (*Orcinus orca*) — calves are sometimes hunted by orca pods. - **Parasitizes:** Whale Louse (*Cyamus boopis*) — small crustaceans living on their skin. ## Traits - [Furry](https://www.snappit.app/explore/traits/furry): Furry describes animals possessing a dense covering of soft hair or fur. - [Social](https://www.snappit.app/explore/traits/social): Social animals live in organized groups, cooperating for survival benefits such as foraging, defense, and raising offspring. - [Filter Feeder](https://www.snappit.app/explore/traits/filter-feeder): Filter feeders obtain nutrients by straining suspended food particles and small organisms from water. - [Speedster](https://www.snappit.app/explore/traits/speedster): This trait identifies organisms that exhibit exceptional swiftness in movement for hunting, escape, or travel. - [Aquatic](https://www.snappit.app/explore/traits/aquatic): Aquatic habitats encompass environments where organisms live predominantly in water, including oceans, rivers, lakes, and wetlands. - [Giant](https://www.snappit.app/explore/traits/giant): Giant describes organisms or objects of significantly larger size than average for their species or type. - [Marine](https://www.snappit.app/explore/traits/marine): Marine habitats encompass all saltwater environments of the Earth's oceans, supporting an immense diversity of aquatic life. - [Migratory](https://www.snappit.app/explore/traits/migratory): Migratory animals undertake seasonal movements from one region to another, typically in response to changes in climate or food availability. ## Collections - [Mammals](https://www.snappit.app/explore/collections/mammals) ## Safety **Danger:** 1/5 · Very low Always admire Fin Whales from a safe distance. They are gentle but belong in the wild, so let’s respect their space! ## Frequently Asked Questions ### How to identify Fin Whale? Compare ears, muzzle, tail, feet and coat markings. Size is hard to judge without something nearby for scale, and young mammals may not have adult coloring yet. Mammal Identifier: upload a photo and compare the visible details. ### How long is Fin Whale? 1800-2400 cm ### How much does Fin Whale weigh? 40000-80000 kg ### How long does Fin Whale live? 70-90 years ### How fast can Fin Whale move? 40 km/h ### What does Fin Whale eat? Fin Whales are filter-feeders, scooping up tons of tiny ocean creatures to eat. ### How does Fin Whale hunt? Filter feeding ### How many babies does Fin Whale usually have? 1 ## More Mammals - [Eastern Fox Squirrel](https://www.snappit.app/explore/eastern-fox-squirrel) (*Sciurus niger*) - [Eastern Cottontail](https://www.snappit.app/explore/eastern-cottontail) (*Sylvilagus floridanus*) - [Eastern Chipmunk](https://www.snappit.app/explore/eastern-chipmunk) (*Tamias striatus*) - [California Ground Squirrel](https://www.snappit.app/explore/california-ground-squirrel) (*Otospermophilus beecheyi*) --- Source: [Fin Whale: Characteristics, Facts & Places to See — Snappit](https://www.snappit.app/explore/fin-whale)