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Crepuscular, a classification of animals that are active primarily during twilight, making them similar to nocturnal animals. Diurnality, plant or animal behavior characterized by activity during the day and sleeping at night. Cathemeral, a classification of organisms with sporadic and random intervals of activity during the day or night.
The distinction is not absolute, because crepuscular animals may also be active on a bright moonlit night or on a dull day. Some animals casually described as nocturnal are in fact crepuscular. [2] Special classes of crepuscular behaviour include matutinal, or "matinal", animals active only in the dawn, and vespertine, only in the dusk.
Four classes of arthropods each provide multiple examples, including sea spiders (with 4 to 6 leg pairs, [11] providing two examples) and pauropods (adults with 8 to 11 leg pairs, [12] providing four examples), but most of the examples listed are either millipedes (adults with 11 to 653 leg pairs) [5] [1] or centipedes (adults with 15 to 191 ...
Sleep can follow a physiological or behavioral definition. In the physiological sense, sleep is a state characterized by reversible unconsciousness, special brainwave patterns, sporadic eye movement, loss of muscle tone (possibly with some exceptions; see below regarding the sleep of birds and of aquatic mammals), and a compensatory increase following deprivation of the state, this last known ...
Cathemerality, where an animal is active sporadically both day and night, occurs among some of the larger lemurs. Few if any other primates exhibit this sort of activity cycle, [ 107 ] either regularly or irregularly under changing environmental conditions. [ 2 ]
[29] [30] They are 3 to 6 cm long, and have 6 to 12 pairs of legs, depending on their life stage. [29] [30] [31] Their eggs, which are white and spherical and covered with small hexagonal ridges, are laid in batches of 4 to 25 at a time, and usually take up to 40 days to hatch. [29] [30] [31] There are about 200 species worldwide. [32]
By Buzz60. There may be a reason as to why shaving your legs never really turned into a job well done. As it turns out, you should have been shaving them at night.
Their diet is a mixture of insects and other small animals, fruit, and tree gums. [8] They have pectinate (comb-like) incisors called toothcombs, and the dental formula: 2.1.3.3 2.1.3.3 They are active at night. After a gestation period of 110–133 days, young galagos are born with half-closed eyes and are initially unable to move about ...