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In sharks, the ampullae of Lorenzini are electroreceptor organs. They number in the hundreds to thousands. Sharks use the ampullae of Lorenzini to detect the electromagnetic fields that all living things produce. [25] This helps sharks (particularly the hammerhead shark) find prey. The shark has the greatest electrical sensitivity of any animal.
Ampullae of Lorenzini (sg.: ampulla) are electroreceptors, sense organs able to detect electric fields. They form a network of mucus -filled pores in the skin of cartilaginous fish ( sharks , rays , and chimaeras ) and of basal bony fishes such as reedfish , [ 1 ] sturgeon , [ 2 ] and lungfish . [ 1 ]
The Five Senses Educational Video Presentations ... Video Classics: The Sharks 1982 1994 90 ... Video Classics: Ocean Reef 1987
A video showing multiple sharks swimming close to the shoreline just south of Myrtle Beach, California, has gone viral, gaining over ten million views since it was uploaded on May 16.
In the ocean, 'sharks are around you and you just don't know it,' expert says. Here's how to be aware at the beach.
Oceans presents details and facts about the journey of the ocean. The film begins on a beach and there are boys and one of them wonders what the ocean is. The scene cuts to the Galápagos where a clan of marine iguanas and horseshoe crabs wander. Then at night an Ariane [7] rocket takes off and surprises the two clans. Meanwhile, the rocket ...
Shark migration patterns may be even more complex than in birds, with many sharks covering entire ocean basins. Sharks can be highly social, remaining in large schools. Sometimes more than 100 scalloped hammerheads congregate around seamounts and islands, e.g., in the Gulf of California. [41] Cross-species social hierarchies exist.
A natural history of the oceans. Also known as The Blue Planet: Seas of Life for North America release. David Attenborough (narrator), Alastair Fothergill (producer) Wild Africa: 2001: A portrait of Africa's landscapes and wildlife. Fergal Keane (narrator) Weird Nature: 2002: Strange animal behavior: Ciaran McMenamin: Talking with Animals: 2002