There are over 500 different species of Rays and Skate in our oceans and rivers. Their closest relative is the Shark; Rays evolved from Sharks around 150 million years ago!
Just like Sharks, Rays don’t have a bony skeleton. Instead, their skeleton is made of cartilage (just like our nose and ears!) This makes them lighter so it is easier for Rays to glide through the ocean.
Stingrays get their name from the stinging barb at the base of their tail. When they feel threatened Stingrays can whip up their tail to puncture their pursuer with their spiny, venomous barb. Once they have done this it takes a while for a new one to grow back, so they only use it as a last resort.