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.
Ribbontail rays get their name from the poison spike in their tail. They can move the spike around and sting the predator with it. Once they have done this, it takes some time to grow a new poison spike. This is why the attack is the last option for them. Bright blue spots on this ray's body act as a warning. This species rarely digs into the sand, unlike many other rays.
You can spot rays in many of our tanks so pay attention!