Killer Whales (or Orca) are actually also interestingly part of the dolphin family which perhaps explains their social diversity. They live in complex social structures and can engage in acrobatic behaviour (breaching, spyhopping etc). Killer Whales are endangered due to prey depletion, habitat loss and pollution.
I love the crisp markings on them and the white eye strip and their large smile-like mouth makes them really cute. I guess I like playful animals! I'd like to see one in its natural surroundings which would be really cool.
Check out lots (and I mean lots) of images below: