Environmental Protection Agency Phthalates Action Plan. Click here to plan your next trip to sites where you can dive with Giant oceanic manta rays. The oceanic manta ray, Mobula birostris, filters large volumes of water while feeding. ![]() Experience this extraordinary spectacle by diving with giant manta rays as they feed. Because they feed on plankton, they are best encountered in nutrient-rich waters which usually have reduced visibility. We can only estimate how much manta rays weigh depending on the gender and the type (giant or reef manta), most would weigh between 50 and 100 lbs (between 22.5 and 50 kilos) per foot. A picture of unknown origin from 1920 shows a manta ray that measured approximately 30 feet. Besides being good jumpers, they are also good communicators, communicating with other manta rays through noises they create with their “wings.” Although they are mostly plankton eaters, these animals have nearly 1,400 tiny teeth. Giant oceanic manta rays can have a wingspan of up to 22 feet wide. They have been seen jumping up to 2 meters from the water’s surface, most likely to rid parasites from their bodies, as scientists believe. Giant oceanic manta rays are among the few, unique fish species that can jump completely out of the water. Scuba diving with mantas is one of the most amazing experiences any diver can have underwater. ![]() The name ‘manta’ comes from the Spanish word blanket and with a wingspan of up to nine meters, it’s easy to see how they can look like a blanket floating in the sea. With fins as wide as wings, manta rays soar along ocean currents like birds in flight, making them one of the most elegant animals of the sea. 'The giant oceanic manta ray (Mobula birostris) is the largest ray, with a wingspan of up to 29 feet 8.8 meters, says Kim Stone, curator of fish and invertebrates at Georgia Aquarium in Atlanta, in an email interview.'Others can grow to 20 feet 6 meters across from wingtip to wingtip.' Stingrays, by comparison, are much smaller. Quick facts about the world's largest manta ray The giant oceanic manta ray (Manta birostris, pelagic manta ray, chevron manta ray).
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