When disturbed, slow lorises can also produce a low buzzing hiss or growl. ", "Letters from the Menage Scientific Expedition to the Philippine Islands", International Animal Rescue: Saving the slow loris, Dr. Anna Nekaris' research and conservation, Asian loris and African pottos conservation website directory, https://en.wikipedia.org/w/index.php?title=Slow_loris&oldid=995540678, Creative Commons Attribution-ShareAlike License, This page was last edited on 21 December 2020, at 16:31. Each of the slow loris species identified before 2012 is listed in the IUCN Red list as “weak” or “endangered.” The three new species have not yet been evaluated, but they are (and are, to some extent, reduced) considered to be single “vulnerable” species. The genus Nycticebus is one of the least studied Asian primates.  However, one 2002 analysis of pygmy slow loris feces indicated that it contained 98% insect remains and just 2% plant remains. It is so easy to get access to wild-caught lorises, it is highly doubtful that a seller who claims to have captive-bred ones is telling the truth. ", Because of their "cuteness", videos of pet slow lorises are some of the most frequently watched animal-related viral videos on YouTube.  Like other strepsirrhine primates, the nose and lip are covered by a moist skin called the rhinarium ("wet nose"), which is a sense organ. , American zoologist Dean Conant Worcester, describing the Bornean slow loris in 1891. The Bengal slow loris is the largest species; it weights between 2.2 and 4.6 pounds and reaches length between 10 and 15 inches (from head to the tail). Lorises live in rainforests, and other forest habitats. Bengal slow lorises are the largest of the species, weighing up to two kilograms. Animal dealers in Southeast Asia keep tanks of water nearby so that in case of a bite, they can submerge both their arm and the slow loris to make the animal let go.  With the use of modern technology, such as battery-powered search lights, slow lorises have become easier to hunt because of their eye shine. The Bengal slow loris is also the largest of the slow loris species, weighing between 1 and 2 kg and with a body length (head to tail) of 26 to 38 cm. They have a range of habitats over a vast area of southern and south-eastern Asia There are nine species of slow lorises currently recognised - the Bengal, Bornean, greater, Hiller's, Javan, Kayan, Philippine, pygmy and Sody's The slow loris is a nocturnal primate that has forward-facing eyes and human-like hands with an opposable thumb It is known from 24 protected areas in Vietnam a… When threatened, slow lorises may also lick their brachial glands and bite their aggressors, delivering the toxin into the wounds. kayan). , Slow lorises have a round head because their skull is shorter than in other living strepsirrhine. , If cornered, they may adopt a defensive posture by curling up and lunging at the predator.  They can tightly grasp branches with little effort because of a special muscular arrangement in their hands and feet, where the thumb diverges at nearly 180° from the rest of the fingers, while the hallux (big toe) ranges between being perpendicular and pointing slightly backwards. About. Slow lorises have a round head, a narrow snout, large eyes, and a variety of distinctive coloration patterns that are species-dependent. To make contact with other individuals, they emit a single high-pitched rising tone, and females use a high whistle when in estrus. Their movement looks similar to that of a snake due to their twisting movement caused by having several more vertebra in their spine than other primates, The slow loris has a reduced second finger for gripping and one of the longest tongues of all the primates, which they use to drink nectar, Although the slow loris is a small mammal, their home ranges can be the size of 35 football pitches, The slow loris has a bite so poisonous that its venom can kill.  Slow lorises have lost a significant amount of habitat, with habitat fragmentation isolating small populations and obstructing biological dispersal.  The Sunda slow loris eats insects that other predators avoid due to their repugnant taste or smell. This manifested as incorrect Red List assessments of "Least Concern" as recently as 2000. , Due to their slow movement, all lorises, including the slow lorises, have a specially adapted mechanism for defense against predation. We are always there to serve the slow Loris. The Bengal slow loris is nocturnal and arboreal, occurring in both evergreen and deciduous forests. Photo Ark 24 Day Old Bengal Slow Loris. Before stashing their offspring in a secure location, female slow lorises will lick their brachial glands, and then groom their young with their toothcomb, depositing the toxin on their fur.  The slow lorises found in animal markets are usually underweight and malnourished, and have had their fur dyed, which complicates species identification at rescue centers.  As in all other crown strepsirrhines, their lower incisors and canine are procumbent (lie down and face outwards), forming a toothcomb, which is used for personal and social grooming and feeding. Of all the loris species, the Bengal slow loris occupies the greatest and northernmost range, with the largest populations living in eastern Thailand. Bornean slow loris is the smallest species; it weighs only 9 to 11 ounces. Because, we returned him to his natural habitat. , Slow lorises range across tropical and subtropical regions and are found in primary and secondary rainforests, as well as bamboo groves and mangrove forests. Females reach sexual maturity at 18 to 24 months, while males are capable of reproducing at 17 months. Slow loris can range from heavy slow loris to 255 grams (1.5 oz), and 2.5 grams (o৪ oz) for Bengal slow loris. A slow loris in its natural habitat.  Slow lorises have been reported gouging for exudates at heights ranging from 1 m (3 ft 3 in) to as much as 12 m (39 ft); the gouging process, whereby the loris repetitively bangs its toothcomb into the hard bark, may be loud enough to be heard up to 10 m (33 ft) away. The pygmy slow loris (N. pygmaeus) occurs east of the Mekong River in Yunnan, Laos, Vietnam, and Cambodia. It prefers rainforests with dense canopies, and its presence in its native habitat indicates a healthy ecosystem.  It may also be used for defense against other slow lorises and parasites. , Preliminary results of studies on the pygmy slow loris indicate that its diet consists primarily of gums and nectar (especially nectar from Saraca dives flowers), and that animal prey makes up 30–40% of its diet. pygmaeus. It is still not clear for what reason the slow loris is venomous; The slow loris is endangered due to both habitat loss and hunting for illegal pet and traditional medicine trades.  Similar to the slender lorises, the fur around and directly above the eyes is dark.  In order to give the impression that the primates are tame and appropriate pets for children, to protect people from their potentially toxic bite, or to deceive buyers into thinking the animal is a baby, animal dealers either pull the front teeth with pliers or wire cutters or cut them off with nail cutters.  The plant gums, obtained typically from species in the family Fabaceae (peas), are high in carbohydrates and lipids, and can serve as a year-around source of food, or an emergency reserve when other preferred food items are scarce. Habitat of the Slow Loris These primates live mostly in dense forests with lots of vegetation. The Bengal slow loris Nycticebus bengalensis is a nocturnal prosimian that inhabits the forests of northeastern India.  Adult males are highly territorial and are aggressive towards other males.  Little is known about the predation of slow lorises. Their slow, deliberate movement hardly disturbs the vegetation and is almost completely silent. Their eyes are large and possess a reflective layer, called the tapetum lucidum, that improves low-light vision. ... 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