"killer whale holding a knife." The new study has already helped highlight crucial differences between the two main types of ...

The Nazca Lines were first recorded in 1927 ... people interacting with animals, and killer whales with weapons. According to Sakai, there have been scenes on pottery of orcas with knives cutting ...

where lines drawn across stretches of earth form images that can be seen from overhead, in Nazca, Peru. The team from Yamagata University said the images of humans, camels, birds, killer whales ...