Narwhal whales live in the icy Arctic waters around Greenland and Canada's Baffin Island. They eat squid and shrimp, and the babies stay close to their mothers for protection. Narwhal whales do not have teeth but instead suck their food into their mouths. Males have unusual spiraled tusks that can grow over 8 feet long, though the purpose of these tusks remains unknown. The information about narwhal whales was found in the book "Narwhal Whales" by Jody Sullivan Rake.