Whales are not considered fish. Although they resemble other animals that are considered fish, whales have a very different anatomy. Whales share many more anatomical and genetic features with another group of animals en... More »

www.reference.com Pets & Animals Mammals Marine Mammals

Whales are considered to be mammals, while fish are simply fish, a different class of animal, and are not mammals. Whales are considered mammals because they are warm blooded and breathe air through lungs. Additionally, ... More »

Whales are classified as mammals and not as fish because they give birth to live young. They also have a sparse amount of fur on their bodies, they have lungs that breathe air and they give milk to their young. More »

Humpback whales feed on fish, krill and plankton. Adult humpbacks have no natural enemies. Scars on juveniles suggest that they may be attacked by killer whales, but this has not been observed directly. More »

Killer whales eat a wide range of large animals, including seals, sea lions, smaller whales, bony fish, sharks, cephalopods, sea turtles and otters. They are the apex predators of the oceans, swallowing smaller prey whol... More »

www.reference.com Pets & Animals Mammals Marine Mammals

Whales are mammals that have an incredibly size range, yet all whales fall between 13 feet long and 90 feet long. The blue whale, the largest known whale or mammal, ranges from around 70 feet to 90 feet. Most other well-... More »

The beluga whale, also called a white whale, is the smallest species of whale. The average beluga weighs 2,000 to 3,000 pounds and measures 13 to 20 feet in length. More »

www.reference.com Pets & Animals Mammals Marine Mammals