Monodon monoceros, narwhal tusk T-Rex Anatomy: Eremotherium had peg-like teeth

Anatomy: Eremotherium had peg-like teeth

This authentic Spinosaurus tooth was found in Morocco

Males may have had larger crests than females

Left and right orbits mostly original bone and matrix

a boomerang shaped head and a long slender body

Monodon monoceros, narwhal tusk T-Rex Anatomy: Eremotherium had peg-like teethThe narwhal, or narwhale (Monodon monoceros), is a medium sized toothed whale and possesses a large "tusk" from a protruding canine tooth. It lives year round in the Arctic waters around Greenland, Canada, and Russia. It is one of two living species of whale in the Monodontidae family, along with the beluga whale. The narwhal males are distinguished by a long, straight, helical tusk, which is an elongated upper left canine. The narwhal was one of many