Trick question: the barracuda is obviously not a whale. What is not so obvious is that orcas, although called killer whales, are also not true whales. Orcas are members of the same family of mammals as porpoises and dolphins.
Killer Whale
Beluga Whale and Bowhead Whale.
The Orca, or "Killer Whale".
The Beluga whale.
orca
Orca
A killer whale is a toothed whale in the oceanic dolphin family delphinidae.
It is a type of Arctic whale. It also means white whale in russian.
The beluga whale (Delphinapterus Leucas).
Killer Whales (Orca orca), dolphins and porpoises are known to actively hunt in packs.
A Killer Whale, or Orca, is a type of whale. All whales are aquatic mammals, so a Killer Whale is a mammal.
All whales are part of the order of mammals known as Cetacea. This family also includes dolphins and porpoises. The Beluga is closely related to the Narwhal The heirarchy of the Beluga is: Order: Cetacea Family: Monodontidae Genus: Delphinapterus