资讯

They're actually the longest teeth in the human mouth. So what are these long ... those teeth are still pretty amazing because anthropologists use canine size and shape to help track when ...
Why do humans have canine teeth? Patrick McGannon ... says Richard Potts, director of the Human Origins Program at the Museum of Natural History. Neanderthal DNA makes up a small percentage ...
If we only had canine teeth, we would be well adapted ... and how the variety in human teeth allows us omnivores to chew up the wide variety of food we eat. An experiment with an egg left in ...