Beneath the surface of our everyday world lies a creature so small and unassuming, yet it holds a secret that defies expectations. While we often imagine large predators or grazing animals when ...

Sharks and crocodiles grow endless sets of teeth, but humans only get two. Explore how teeth develop and how regenerative ...

Birds, unlike their dinosaur ancestors, lack teeth, relying on beaks and gizzards for eating. Some birds have evolved ...