Round Ray

The round ray, also known as the California stingray, is a species of stingray found along the sandy and rocky seafloors of the eastern Pacific Ocean, primarily from central California to Baja California. This species is recognized for its round, disk-shaped body, which can reach a width of up to 18 inches. The round ray has a smooth, grayish or brownish dorsal surface, often with darker spots or patterns that help it blend into the seafloor. Its underside is lighter, and it has a long, slender tail equipped with a venomous spine used for defense.

Round rays are bottom-dwelling creatures that feed primarily on small invertebrates, such as crustaceans, mollusks, and worms, which they detect using their electroreceptive organs, called ampullae of Lorenzini. These rays are known for their ability to "bury" themselves in the sand by flapping their pectoral fins, creating a depression in the sand in which they can hide. This behavior helps them avoid predators while also serving as an effective hunting strategy, as they can surprise their prey by emerging from the sand.

The round ray is a relatively slow-moving species, but it is capable of swift bursts of speed when necessary, particularly when threatened. Like other stingrays, the round ray has a barbed tail spine that it uses for self-defense. While the sting is not usually fatal to humans, it can cause severe pain and injury.

The round ray is classified as Least Concern due to its stable populations and widespread distribution. However, like many species of stingrays, it faces threats from habitat loss, pollution, and fishing pressure, particularly in areas where bottom trawling and other destructive fishing practices are common.

Fun Facts:
Round rays are expert at camouflaging themselves by burying their bodies in the sand, leaving only their eyes and tail visible.

The venomous spine on their tail is used as a defense mechanism against predators.

Round rays are typically solitary creatures but may be found in small groups during the breeding season.