The Life of Animals | Night Monkey | The night monkeys, also known as the owl monkeys or douroucoulis, are the members of the genus Aotus of New World monkeys (monotypic in family Aotidae). The species live at higher elevations That growing niche to have Thicker fur than the monkeys at sea level. Night monkeys have big brown eyes and therefore have Increased ability to be active at night. They are Called Because all species of night monkeys are active at night and are in fact the only truly nocturnal monkeys (an exception is the subspecies Aotus azarae azarae, the which is cathemeral) Both male and female Night Monkeys weigh almost the same amount. For example, in one of these Night Monkeys, A. azarae, the male weighs 2.76 pounds while the female weighs 2.75 pounds.
Family groups defend territories by vocal calls and scent marking. Night monkeys constitute one of the Few That monkey species are affected by the Often deadly human malaria protozoan Plasmodium falciparum, making Them useful non-human primates as experimental models in malaria research Until 1983, all night monkeys were the resource persons placed into only one (A. lemurimus) or two species (A. lemurinus and A. azarae).
As is the case with some other splits in this genus an essential part of the argument for recognizing this new species was differences in the chromosomes Chromosome Evidence has also been used as an argument for merging "species", as was the case for considering a infulatus subspecies of A. azarae rather than a separate species of Fossil species have (been entered correctly or incorrectly) been assigned to this genus, but only extant species are listed below.
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