Killer whales live mostly in cool coastal waters. However, they can be found in most oceans across the globe. The least likely area to find them is in the middle of open warm areas, such as the Pacific Ocean.
Also known as Orcas, Killer whales are found worldwide despite their preference for cool coastal regions. They travel in pods, of which there are two main types. Resident pods stay mostly stable over time, while transient ones change as time passes. The different pod types appear to feed on different prey animals. Resident pods focus on fish, and transient pods are more interested in marine mammals.
A pod typically contains around 40 individuals, most of these are part of a single family group, and is matriarchal in its composition. When hunting a pod works as a team, which increases its effectiveness and efficiency at catching prey; this is similar to the way wolf packs hunt. Killer whales grow up to 32 feet in length and weigh up to 6 tons. A killer whale pregnancy lasts 17 months, and they give birth roughly every three to ten years. These carnivores live up to 80 years. Different pods usually have distinct sounds that distinguish their members from other pods.