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Other common names include bone shark, elephant shark, sailfish, and sunfish. The basking shark is a cosmopolitan migratory species found in all the world's temperate oceans. A slow-moving filter feeder , its common name derives from its habit of feeding at the surface, appearing to be basking in the warmer water there.
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.
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The value of shark fins for shark fin soup has led to an increase in shark catches where usually only the fins are taken, while the rest of the shark is discarded, typically into the sea; health concerns about BMAA in the fins now exists regarding consumption of the soup A 4.3-metre (14 ft), 540-kilogram (1,200 lb) tiger shark caught in Kāne ...
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These baby sharks huddle together and swim toward warmer water until they are old and large enough to survive on their own. [19] In 2007, the bonnethead shark was found to be capable of asexual reproduction via automictic parthenogenesis, in which a female's ovum fuses with a polar body to form a zygote without the need for a male. This was the ...
English: A diagram showing a newborn, an average-sized adult, and large adult basking shark (Cetorhinus maximus). • The maturity and growth of the basking shark are poorly understood. [1] [2] • Newborn basking sharks are around 1.5 to 1.7 meters (4.9 to 5.6 ft) in length (1.5 m shown in the diagram above). [1] [3]
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 ]