That's the scientific term for sharks and stingrays, as well as skates and ... either a lack of scales or specialized tooth-like scales called dermal denticles, their ability to detect electric ...

They Move by Flapping Their 'Wings' Stingrays may look like they’re flying through the ... Stingrays Are Closely Related to Sharks They may not have sharp teeth, but stingrays still share ...

My strongest stroke is the backstroke, and I like to swim underwater ... In French Polynesia, we swam with blacktip sharks, stingrays, and manta rays. Blacktip sharks are not considered highly ...