April 17 (UPI) --In an effort to figure out which physical characteristics best correlate with puncturing performance, scientists chose to study the sharpness of viper fangs. "Viper fangs are a good ...

This mandrill is filmed so close that every detail becomes intense, from the bright facial colors to the sharp fangs that appear like a warning. In primates, showing teeth can signal dominance, ...

Photo by L. Brian Stauffer; specimen (c) Field Museum of Natural History FMNH 11006 At an early age, we realize that sharp things hurt. Rose thorns, cactus spines, dog teeth, and fish bones all share ...

WASHINGTON (AP) — Scientists have revealed fossils of a giant salamanderlike beast with sharp fangs that ruled waters before the first dinosaurs arrived. The predator, which was larger than a person, ...