Silky Shark
The silky shark is named for the smooth feel of its skin. This shark is found worldwide in tropical waters.
Class: Chondrichthyes
Order: Carcharhiniformes
Family: Carcharhinidae
Genus: Carcharhinus
Species: C. falciformis
Common Names: Silky Shark, Blackspot Shark, Gray Whaler, Olive Shark, Sickle Shark, Ridgeback Shark
The silky shark preys mostly on fish, squid and crabs, and may scavenge on whale carcasses. Their main predators include larger sharks and orcas.
Silky sharks are known to engage in intimidation displays when they feel threatened. A shark will arch its back, lift its head, and swim in a figure eight or looping pattern aggressively.
Silkies are viviparous, meaning that embryos develop within the mother shark, who gives birth to the pups live. Pregnancy lasts around a year, and the litter usually contains up to a dozen pups. Due to a high risk of predation on baby sharks, they grow very fast. They are about two feet in length at birth, and can add up to a foot of additional length within their first year.
The silky shark is a slender, streamlined shark with a relatively long snout. They range in color from gray to golden brown above, fading to white below, with a band of white streaking across the flank on each side.
Silky sharks grow to about eight feet in length, though the largest known example was 11 feet long.
Silky sharks are members of the requiem shark family, which includes many other notable sharks, such as the bull shark, the gray reef shark, the oceanic whitetip, the blacktip reef shark, the tiger shark, and many more.
While its size and teeth make it a potential threat to humans, the silky shark is not often encountered by swimmers due to its offshore habitat.
While they are believed to number in the tens of millions worldwide, the silky shark is still considered a Vulnerable species. They are fished commercially in many areas, and are in danger of being overfished.
References
https://en.wikipedia.org/wiki/Silky_shark
Castro, Jose I. (2011). The Sharks of North America. New York, New York: Oxford University Press, Inc.
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