The gray reef shark lives in waters with reefs and rocks. They often swim to people swimming in the water.
These predatory fish reach quite large sizes, and in the mouth they have a huge number of large, sharp teeth, bent back with serrated edges, like a saw. With the help of such teeth, gray reef sharks instantly tear prey to pieces.
Where do gray reef sharks occur?
These sharks swim both near the mainland and small islands. Their favorite place is coral reefs.
Gray reef sharks live in the Pacific, Indian oceans, as well as in the Red Sea.
The hallmarks of reef sharksGray Reef Shark (Carcharhinus wheeled).
The body length of an adult shark of this species ranges from 1.5-2.5 meters. The shape of the body resembles a torpedo. Due to this body shape, the gray reef shark swims very rapidly and can perform sharp maneuvers. As for the color, it is mostly gray, but may vary slightly in color. On the tail there is a strip of black.
Gray Reef Shark DietGray reef sharks live in the Pacific and Indian oceans.
These sharks feed mainly on reef fish. In addition, cuttlefish and crayfish are included in their diet. Food, reef gray sharks, are caught off the coast.
Danger to humans
These predators often attack humans. For many, gray reef sharks cause panic. Sharks of this species instantly become furious even from a small vibration or when a tiny drop of blood gets into the water. At such moments, the shark tries to bite everything, even if the victim is not nearby.These predators often attack humans.
Before the attack, a shark circles around the victim, while it arches its back and greatly opens its toothy mouth. Then she attacks the prey.
It is believed that these sharks are extremely dangerous, but there is information that divers managed to tame these predators. In addition, there is evidence that these sharks ate directly from the hands of man.
Like most other shark species, gray reef sharks are viviparous. The female can give birth to up to 6 cubs at a time.
The body length of newborn sharks reaches approximately 71 centimeters. Most often, the female reef shark gives birth to 3-6 cubs. The gestation period takes 12 months.Gray reef sharks are viviparous.
Sexual maturity in female reef sharks occurs when they grow to a length of 2-3 meters. But the males of reef sharks become sexually mature with a body length of about 1.5 meters. Females bring posterity 1 time in 2 years. In the process of mating, males often bite females, as a result of which numerous scars remain on their bodies.
The breeding process of Caribbean reef sharks living in the northern hemisphere is not fully understood. It is known that sharks that live in the southern hemisphere bring posterity in the summer - from November to December.
Reef Shark FeaturesGray reef sharks prefer to live in groups.
The reef shark has serious differences from other marten sharks. Their main feature is the lack of splatter. In addition, the reef shark has a blinking membrane. Among other things, this species has only 2 rows of teeth that it can use.
Reef sharks in comparison with other species of mustelids have the largest sizes - sexually mature individuals can have a length of more than 2 meters. These predators live in warm tropical waters. In coral atolls, these sharks are permanent residents.
The reef sharks that live on the Caribbean islands feed mainly on tuna fish. But, interestingly, tuna fish themselves often attack reef sharks. Gray reef sharks also feed on various bony fish and invertebrates. Caribbean sharks, grabbing victims with sharp teeth, make sharp jerks with their heads to the side.
Often individuals fight among themselves for the caught prey. During hunting, reef sharks, like other species, use highly sensitive organs that act as locators and allow you to detect prey. The main body for finding a victim is the sideline of sharks. In addition, reef sharks use their sense of smell, touch and hearing during hunting. Also, these sharks have Lorenza ampoules - these are organs with increased sensitivity, which allow you to determine even the most minor fluctuations in the water. But the role of Lorenzia ampoules in reef sharks is noticeably lower than in hammerhead sharks and other shark species.
Scientists believe that reef sharks mainly prey on sick and weakened victims. A wounded fish twitches in the water, and the shark instantly determines these vibrations with the help of its senses, and then the predator uses its sense of smell and catches up with its prey.Often gray reef sharks fight among themselves for caught prey.
If you compare the Caribbean reef sharks with other inhabitants of tropical waters, they are not too large. The body color of these sharks, as a rule, is uneven - the fins towards the end are much lighter than the rest of the body. The color of reef sharks is masking; it allows them to hide among reefs. Caribbean reef sharks are not dangerous for drivers.
Sharks must move continuously, then water will pass through the gills, and the oxygen contained in the water will penetrate the body, and reef sharks need no constant movement for life. These sharks can lie at the bottom, and water will enter the gills, be filtered and fill the body with oxygen. Scientists discovered this feature among reef sharks living near the shores of Cuba, as well as the Brazilian archipelago Fernando de Noronha.
A feature of reef sharks is also a collective lifestyle. These sharks often gather in flocks of up to several dozen individuals.