Tuesday 25 October 2011

Gray Reef Shark | Wildlife

The Wildlife | Gray Reef Shark  | The largest Gray Reef Shark known to science was 255 cm. It was unsexed, but most likely a male. The largest female Gray Reef Shark measured was 172 cm. The maximum recorded weight for a Gray Reef Shark is 33.7 kg. We know that they can reach an age of at least 25 years. The reproduction is viviparous, which means that the Gray Reef Shark embryos feed from a yolksac placenta inside the female Gray Reef Shark. The gestation period is roughly 12 months, after which the female will give birth to 1-6 pups. A new born Gray Reef Shark pup is usually 45-60 cm (15.7-23.6 inches). 

The Gray Reef Shark is a typically found at or nearby continental and insular shelves. As the name suggests, it is frequently spotted around coral reefs. The deeper regions close to drop-offs to more open water is one of the favourite places for Gray Reef Sharks. They also like to stay in quite shallow lagoons, as long as those are adjacent to areas with strong currents. 

The Gray Reef Shark is a curious and social creature. You can often see large groups of Gray Reef Shark at their favourite places around the reef. It is usually not dangerous to humans, but attacks have occurred. Their curious nature can make them a bit investigative when it comes to swimmers and scuba divers. Feeding Gray Reef Shark can be unsafe, since the “feeding frenzy” can make them more aggressive and hurt a human that would normally not be considered prey or a threat. If the Gray Reef Shark turns its body into a somewhat hunching, S-like, position it is usually a sign that tells you that the shark is feeling threatened. Gray Reef Sharks are more active during the night than during the day, and feed on fish, octopus and squids, and many types of crustaceans such as lobsters, shrimps and crabs. Click Here for more details.
 Gray Reef Shark
 Gray Reef Shark
 Gray Reef Shark
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