More facts:
Stingrays are closely related to sharks.
Stingrays are solitary, but can also live in groups, often during breeding and migration. Pic of a fetch of stingrays.
There are about 220 known stingray species, organized into ten families and 29 genera. Many species are endangered due to overfishing, habitat loss, and climate change.
Stingrays greatly vary in size. The short-nose electric ray is approximately 10cm. But the giant freshwater stingray can grow up to 6.2 ft (1.9 m) and weigh up to half a ton (1,300 lb or 600 kg): they are one of the biggest freshwater fish in the world, here's a gif of one.
The venom in stingrays tails was once used by Greek dentists for aneshtetic.
Stingrays date back about 150 million years, during the Jurassic period.
Stingray eyes are on the top of their body, but to locate prey they use "ampullae of Lorenzini," which are special electroreceptor sensing organs that form a network of jelly-filled pores. These allow them to detect electrical signals from other animals when they move.
Stingrays are carnivorous and feed on crustaceans, small fish, snails, clams, shrimp, and other small creatures. Their mouths are on both sides of their body. Cute gif of feeding.
A 2013 study of Stingray City in the Cayman Islands (pic) found tourists drastically altered stingray behavior. Many rested at night instead of the day as usual, they became less solitary, abandoned their specific mating season, and showed more signs of unusual aggression towards each other.
They have feet?
no, although males have claspers which look like feet but are for sex