To brush your dog's teeth, they need to be comfortable with you messing with their mouth. It's best to start this when they are a young puppy. The process is desensitizing them to you touching and ...

The models, scaled to identical surface areas ... saber teeth provide a window into the complex trade-offs of evolution. Canine teeth must be sharp and slender enough to puncture prey but also ...

Why do humans have canine teeth? Patrick McGannon, Surprise, Arizona All primate species have them, says Sabrina Sholts, a curator of physical anthropology at the Museum of Natural History.