ORCAS The Finnish ppl call 'em WHALE KILLERS ('cause they kill Whales - they eat 'em alive!) "Killer Whale" is a mistranslation - the sentence structure is diff. Although related to Whales they're more similar to Dolphins!
The Mantis Shrimp not only looks like a rainbow, it has the most complex sight in the animal kingdom. In other words, not only do they look like a rainbow, they can see far more colors in the rainbow than any other creature on the planet.