Most children have a full set of 20 milk or baby ... Learning more about shark teeth and how they regenerate could eventually teach us how to grow new human teeth in later life.
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 ...
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 ...
Although mating has never been scientifically observed, scars on female sharks suggest that males use their teeth to hold onto while mating. Based on their estimated growth rate, length and number ...
An investigation of a fossilized sawtooth shark’s rostral denticles (the “teeth” on the fish’s ... discover fungi in the saliva samples of children with severe tooth decay, but they ...