Blue whales have a worldwide distribution and can be found in all the world's oceans. They travel extensively, feeding heavily in cool waters and migrating to warm waters to breed and give birth.
Orcas, or killer whales, are most commonly found in coastal waters less than 200 meters deep. The top 200 meters of ocean are known as the epipelagic, or sunlight, zone because the sun's light is able to penetrate into this zone.
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 entirely: 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-known whales, such as the orca, sperm, humpback an...
Whales communicate using vocalizations and body language; their vocal communication includes clicks, whistles and pulsating sounds, while they send other messages through movements of their tails and fins. Whales use communication for social purposes as well as navigati...
Whales have hair, as all species of whales are aquatic mammals. Instead of having scales, like most other marine animals, whales have a fine layer of hair over their bodies.
According to the U.S. Geological Survey, a group or school of whales is called a gam, pod or herd. The term "pod" is also used for cetaceans such as dolphins and killer whales.