... Adaptations. The bonnethead shark or shovelhead (Sphyrna tiburo) is a small member of the hammerhead shark genus Sphyrna, and part of the family Sphyrnidae.It is an abundant species on the American littoral, is the only shark species known to display sexual dimorphism in the morphology of the head, and is the only shark species known to be omnivorous. It is one of the most easily recognizable sharks because of their distinct blue coloration – a combination of deep indigo and vibrant blue. After millions of years of adaptations, more than 500 species of sharks swim the planet's oceans today, and sharks … These sharks are the only shark that travel in packs (or schools) to catch prey. In total, sharks have survived five mass extinctions over the last 439 million years. Sharks’ ability to sustain life as the apex of the aquatic ecosystem for more than 400 million years speaks volumes about their physical and behavioral adaptations. The blue shark (Prionace glauca) is a species of requiem shark, in the family Carcharhinidae, that inhabits deep waters in the world's temperate and tropical oceans. The shark has wide- set eyes to cover more area when hunting. They are survivors! Some others were similar to eels; their faces featured noses that were round rather than pointed. The planet Earth can be a difficult place to survive. Blue glaucus can grow up to 1.2 inches (3 cm) long. Sharp sense of smell- helps find prey. Averaging around 3.1 m (10 ft) and preferring cooler waters, the blue shark migrates long distances, such as from New England to South America.It is listed as Near Threatened by the IUCN. Although the blue shark has few predators, the camouflage does protect it from potential threats. Shark Adaptations. A Tiger Shark swims over coral reef in Fuvahmulah, Maldives. Blue glaucuses can swallow air … Although the shark is a capable predator in many waters, sharks mainly change their environment when in search of food. Limiting factor on population Sadly speaking, humans kill around 10 – 20 million blue sharks each year in the name of fishing. The adaptive features of sharks have enabled the species to survive in waters all over the world for more than 400 million years. As mentioned before, one of the Blue shark facts is that the Blue shark prefers a habitat of deep, cool waters, making it an epipelagic species. Blue glaucuses eat large, venomous prey, such as the Portuguese man o’ war and the blue button jelly, and store their prey’s stinging cells in their bodies to later use against predators. Its genome is 4.63 Gbp, over half of which is represented by repeat sequences, including a large proportion of transposable elements. There is evidence to suggest they looked more like fish. 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