Are whales porpoises?

Collectively, whales, dolphins and porpoises are known as cetaceans. Cetacean species are divided into two groups; (1) Baleen whales – these are the “great whales” and as their name suggests they all have baleen plates that are used to filter their food (which consists of plankton and small species of fish). read more

Porpoises are a group of fully aquatic marine mammals that are sometimes referred to as mereswine, all of which are classified under the family Phocoenidae, parvorder Odontoceti (toothed whales). There are seven extant species of porpoise. read more