latest
Ammonia is a toxic waste product, produced by the breakdown of amino acids. Instead of being repelled by ammonia (a substance excreted by other animals), sharks actually absorb it at high rates through their gills.
Read moreThe animal would arch its back, raise its snout, depress its pectoral fins and swim toward the offending diver with exaggerated horizontal swimming movements, sometimes rolling or looping in a spiral.
Read moreWhile many sharks are solitary predators, some are known to live in groups and are suspected of engaging in complex social behaviors. Meanwhile others simply aggregate due to similar habitat, food, or mating requirements.
Read moreSharks have a big reputation for their teeth.
, ,There is no way to truly put into words the exhilaration of seeing a great white shark swim past you, only a few feet away.
Read moreRemoras have evolved a clever strategy to survive. Their relationship with sharks is mutualistic: of benefit to both species.
Read moreThe biology of Greenland Sharks have always been surrounded by mystery. Among other things their age was unknown but expected to be great.
Read moreTaking a giant stride off the back on the boat, the chill of the water snapped me out of my early-morning haze. Below me, the sharks were already there; at least ten were circling below the boat.
Read moreOf all known sharks, the megamouth is considered to be the rarest of all. The first one ever seen was a male, 4.5 metres long. It was dragged from the depths by a U.S.
Read moreThere are a few places in the world where one can see sharks quite close naturally (without divers changing the natural environment with food), such as the sardine run in South Africa where huge bait balls attract sharks.
Read moreCurrent research has shown that waters off Florida and the Bahamas are important pupping and feeding grounds for several sharks, providing them with the critical habitat required for the conservation of these slow-to-mature ocean animals.
Read moreA difficulty in obtaining information about the natural behaviour of wild animals is that detailed observations of the activities of different individuals is necessary over long periods of time, and this is especially hard to achieve with sharks.
Read moreThe film - which took five years to make - discovers a superb conservation success story, where sharks are considered sacred.
Read moreSand tiger sharks, top predators that live in coastal waters off the Eastern United States, have experienced drastic population declines over the past several decades.
Read moreBull shark diving is becoming a popular tourist activity in the waters around Cancun, Playa del Carmen and Cozumel.
Read moreAll other species, wild and tame, with which I had the intimacy I shared with sharks, had bitten me sooner or later, either by accident or in a fit of pique; even my pet dog sometimes grabs my hand in her teeth along with the offered cookie.
Read more