Males reach reproductive maturity when they are 88.5 inches or 225 cm while females when they are 96.5 inches or 245 cm.  This shark adapts well to captivity and is displayed in public aquariums.  Sicklefin lemon sharks have been documented resting on the bottom and eliciting cleanings by bluestreak cleaner wrasses (Labroides dimidiatus), during which they may open their mouths and stop respiring for as long as 150 seconds to give the wrasses access to their mouths and gills. Negaprion queenslandicus Whitley, 1939 This particular species of shark is very patient when it comes to hunting. Group name: School or shoal
This species attains a maximum known length of 3.8 m (12 ft), though it typically does not exceed 3.1 m (10 ft). The young are born at a length of 45–80 cm (18–31 in). Most of the attacks that have been noted were provoked, but that isn’t always the case with them.  Juvenile sharks grow slowly, at a rate of 12.5–15.5 cm (4.9–6.1 in) per year. They are very social though and they develop a hierarchy based on gender and size that is very complex. Lemon sharks live up to 25 years in captivity and up to 30 years in the wild. , A sluggish species, the sicklefin lemon shark is usually seen cruising sedately just above the sea bottom or lying still on it, as unlike most requiem sharks, it is capable of actively pumping water over its gills. The precaudal pit (a cavity just forward of the caudal fin) is oriented longitudinally. Aprionodon acutidens queenslandicus Whitley, 1939 The shallow waters of the oceans disguise this shark characterized by the yellowish color of its back. Source: IUCN Red List of Threatened Species, IUCN Red List of Threatened Species – Negaprion brevirostris, University of Michigan Museum of Zoology – Negaprion brevirostris Galano, Ichthyology at the Florida Museum of Natural History. Like the lemon shark, the finetooth shark also likes to travel in large packs. Sometimes, an individual may venture into open water; one was filmed in the 1971 documentary Blue Water, White Death, in the vicinity of a sperm whale (Physeter macrocephalus) carcass. They also are known to consume sea birds close to the surface of the water. This classifies them as Chondrichthyes fish. These sharks have a pale yellow-brown to grey skin, which lacks any markings. Lemon sharks are bottom dweller and they often track their prey by churning up the ground for rays, bony fish, and sometimes even sea birds.  The coloration is a plain yellowish brown or gray above and lighter below, with more yellow on the fins. The IUCN Red List of Threatened Species considers the lemon shark as a “Near Threatened” species. U.S National Library of Medicine – A genetic assessment of polyandry and nursery fidelity in lemon sharks. They young are born in shallow water and must care for their own needs from birth. , Over 90% of the sicklefin lemon shark's diet consists of bottom- and shore-dwelling teleosts, including herring, mullets, mackerel, silversides, needlefish, smelt-whitings, porgies, sea catfish, triggerfish, parrotfish, and porcupinefish. It reaches a length of 2.4 to 3.6 meters and a weight of 90-183 kilograms being the female slightly bigger than the male. Lemon Sharks (Negaprion Brevirostris) are sharks recognizable by their yellow skin that helps them camouflage against the sandy waters of their habitat. The snout is rounded or almost wedge-shaped, with small nostrils bearing triangular flaps of skin in front. Sharks need to keep water moving over their gills to receive oxygen. The vast majority of animals weigh around 200 lbs. This is the result of various lighting within the depths of the water where they live. However, they will look for food by the shore first to help them conserve energy. One of the interesting shark species out there that still is very mysterious is the Lemon Shark.  A study at Aldabra Atoll in the Seychelles found, of the tagged sharks that were later recaptured, over 90% were still within 2 km (1.2 mi) of their initial tagging location. The lemon shark is a medium-sized shark species that is native to the western coast of Africa, as well as the Atlantic and Pacific coasts of North and South America. Off India and Southeast Asia, this species has been severely depleted or extirpated by unregulated exploitation for its meat, fins, and liver oil. They have one pectoral and one pelvic fin. Thanks to this feature can camouflage perfectly with the bottom of the ocean in shallow waters because its color is similar to the sand of the sea floor. The result is a look that is pitted and yellow –resembling the outer look of a lemon.
Their eyes are relatively small, and electroreception pores line their snouts. Lemon sharks use their yellow color to successfully hide in their natural habitat. Both sexes attain sexual maturity at a length of 2.2–2.4 m (7.2–7.9 ft). They hunt at night using their acute sense of smell and electro-receptors to find their prey. They are found swimming along the sand at the bottom of the water so they blend in with ease, so they can hide from predators.
Updated daily. This area has shallow waters of up to 50 cm. https://www.flmnh.ufl.edu/fish/discover/species-profiles/negaprion-brevirostris, https://en.wikipedia.org/wiki/Lemon_shark, http://www.iucnredlist.org/details/39380/0, http://www.arkive.org/lemon-shark/negaprion-brevirostris/, Designed by Elegant Themes | Powered by WordPress. Quickly approaching it, and before making any physical contact, it stops abruptly. Gestation period is from 10 to 12 months. It has a flattened head with a short, broad snout and the second dorsal fin is almost as large as the first. There are many locations where the Lemon Shark is able to thrive. It shares some threats with other shark species; its meat, liver, skin, and fins are highly valued in the gastronomic and medicinal fields. They have been known to bite humans but it is believed this is due to being spooked or provoked. Scaled 2DÂ drawings and 3DÂ models available for download. (2009). Widespread habitat degradation, including pollution and blast fishing on coral reefs and deforestation in mangroves, poses an additional threat to the survival of this species in the region. Their torso coloration varies from olive green to yellow brown. The embryos develop a placenta after around four months of gestation, when they still possess vestiges of external gills.
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