Bat ray (Myliobatis californica) is a giant ray similar to the wingspan of an eagle found in mud or sand in the eastern Pacific between the Oregon coast and the Gulf of California, along the bay and the Gulf, calp beds and rocky bottoms.
It is also found in the vicinity of the Galাপpagos Islands. The largest specimens can be up to 1.8 meters (5 feet 11 inches) and a mass of 91 kg (201 pounds).
They usually start at 9.07–13.61 kg (20.0–30.0 lbs). The bat ray urihaline, meaning that they are able to live in an environment with a wide range of salinity.
The rays of the bats feed on mollusks, crustaceans, and small fish along the seashore, using their petal fins to move the sand and release predatory animals. They can dig trenches up to 20 cm deep to explore buried victims such as.
The ray of the bats is flat and pavement-like, creating tightly packed rows that are used to grind and spoil the prey – powdered shells come out and the meat is consumed. Like all elasmobranchs, these teeth fall out and are constantly replaced.
Relationship with people
Bat ray, like other stingrays, has a poisonous spine in its tail (near the base), but is not considered dangerous and only uses the spine when attacked or intimidated.
Currently, the ray of the bats is done commercially in the US, not in Mexico. Prehistorically, large numbers of bat rays were created for food by local indigenous peoples of the California coast (probably the Ohlone), especially in the San Francisco Bay area.
Commercial enthusiasts have long believed that bat rays (which live in the estuarine region equally for the industry) are the victims of oysters and that they are trapped in large numbers. In fact, crabs (which suffer from bat rays) are primarily responsible for oyster damage. The ray of the bats is not considered endangered or threatened.
Bat rays are popular in marine parks and visitors are often allowed to touch or stroke the ray on the wings.
The ray of the bats is ovoviviparous. They mate in spring or summer each year and have a gestation period of nine to twelve months. Litter sizes range from two to ten – the peoples rise with their germinal wings wrapped around the body, and the poisonous spine is flexible and covered in a leaf that sloshes within hours of birth. Bat ray survives for 23 years.
Synchronized wingbeats oscillate the bat’s rays while swimming with the male below the swimming female. The male inserts a sponsor serum into the female cloaca to crack the egg and spores the sperm into the nest to discharge her egg.