A new study based on two decades of data shows what happens in an ocean ecosystem without great white sharks. Great white ...

Teeth from sharks and rays can be used to ... gummy sharks, and broadnose sevengill sharks. Despite the different tooth structures, none were altered by ethanol, bleach, or hydrogen peroxide ...

Teeth from sharks and rays can be used to ... gummy sharks, and broadnose sevengill sharks. Despite the different tooth structures, none were altered by ethanol, bleach, or hydrogen peroxide ...