big sharks in the world

Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whole.



Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (40 ft) in length. Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have numerous sets of replaceable teeth.



Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Many shark populations are threatened by human activities.

huge bodybuilder in the world

Bodybuilding is the use of progressive resistance exercise to control and develop one's musculature.[1] An individual who engages in this activity is referred to as a bodybuilder. In competitive amateur and professional bodybuilding, bodybuilders appear in lineups doing specified poses, and later perform individual posing routines, for a panel of judges who rank competitors based on criteria such as symmetry, muscularity and conditioning. Bodybuilders prepare for competition through a combination of dehydration, fat loss, oils, carb loading to achieve maximum vascularity, and tanning (or tanning lotions) which make their muscular definition more distinct. Well-known bodybuilders include Charles Atlas, Steve Reeves, Reg Park, Arnold Schwarzenegger, Juliana Malacarne, Ralf Moeller and Lou Ferrigno.



The winner of the annual IFBB Mr. Olympia contest is generally recognized as the world's top male professional bodybuilder. The title is currently held by Phil Heath of the United States. The winner of the Women's Physique portion of the competition is widely regarded as the world's top female professional bodybuilder. The 2015 title is currently held by Juliana Malacarne, a Brazilian-born American IFBB Pro fitness and figure competitor and Ladies All-Star Wrestling Professional. Since 1950, the NABBA Universe Championships has been considered the top amateur bodybuilding contest with many notable winners such as Steve Reeves, Bill Pearl, Reg Park, Arnold Schwarzenegger and Lee Priest.