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The spinner dolphin feeds mainly on small mesopelagic fish, squids, and sergestid shrimps, and will dive 200–300 m to feed on them. [14] Spinner dolphins of Hawaii are nocturnal feeders and forage in deep scattering layers, which contain many species. The dwarf spinner dolphin may feed mostly on benthic fish in reefs and shallow water. [7]
Porpoising occurs mainly when dolphins and porpoises are swimming at speeds greater than 4.6 m/s. [11] Here, jump length is roughly equal to distance traveled when the cetaceans are submerged. [11] This exposes the blowhole for longer which is needed to get enough oxygen to maintain metabolism and therefore high speeds over long periods of time.
Clymenes are fairly active dolphins. They do spin longitudinally when jumping clear of the water, but not with as much regularity and complexity as the spinner dolphin. They will also approach boats and ride bow waves. [15] Group sizes vary from just four up to around 150 individuals, [5] although about forty is typical. [15]
A pod of dolphins was spotted catching some serious air last week off the coast of San Diego, with footage of the aquatic aerobics already racking up millions of views on social media.
U.S. regulators on Tuesday banned swimming with Hawaii's spinner dolphins to protect the nocturnal animals from people seeking close encounters with the playful species. Swimming with dolphins is ...
Spinner_dolphins_video.wmv.ogv (Ogg multiplexed audio/video file, Theora/Vorbis, length 46 s, 640 × 480 pixels, 2.76 Mbps overall, file size: 14.99 MB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Oct. 1—A new federal rule will require people to maintain a 50-yard distance from spinner dolphins in Hawaii in an effort to better protect them from human disturbances. Swimming with dolphins ...
There are also fewer than ten pilot whales, Amazon river dolphins, Risso's dolphins, spinner dolphins, or tucuxi in captivity. Two unusual and rare hybrid dolphins, known as wolphins, are kept at Sea Life Park in Hawaii, which is a cross between a bottlenose dolphin and a false killer whale.