Without any eyelids for protection, whale sharks need to get creative. They have "armored eyes" covered in teeth and can ...

A study explores how uranium isotopes in fossilized shark teeth could provide insights into historical ocean anoxia, with ...

Greenland sharks have narrow, pointed upper teeth and broader, squared teeth on the lower jaw. Holding large prey in position with their upper teeth, they roll their head in a circular motion ...

Three children show and discuss their wobbly teeth. They visit an aquarium and find out about sharks’ teeth before talking about the differences between shark and human teeth. Students could be ...