From llamas to horses, many herbivorous animals have hypsodont or continuously growing teeth designed to withstand heavy wear from abrasive diets. But without proper alignment, diet, and care, these ...

I have some old friends, Dave and Joan, who live in northern Minnesota. For years, they have raised sheep and goats, because, hey, they live in northern Minnesota. When I visited recently, they were ...

Rats and other rodents have front teeth that grow continuously, so they gnaw to keep them healthy and in shape. Himanshu Sharma / Anadolu via Getty Images Beavers are famous for nibbling away at trees ...