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Examples include the common wombat, marsupial mole, and members of the Chrysochloridae. In elephants, the rhinarium has become a tactile organ. And in the walrus, a covering of stiff bristles protects it while the animal forages for shellfish. In many animals, the form and purpose of the rhinarium remains unclear.
Tapir (Tapirus terrestris) snout showing flehmen. A snout is the protruding portion of an animal's face, consisting of its nose, mouth, and jaw. In many animals, the structure is called a muzzle, [1] rostrum, beak or proboscis.
The distinction of catarrhines from platyrrhines depends on the structure of the rhinarium, and the distinction of Old World monkeys from apes depends on dentition (the number of teeth is the same in both, but they are shaped differently). In platyrrhines, the nostrils face sideways, while in catarrhines, they face downward.
The strepsirrhine rhinarium can collect relatively non-volatile, fluid-based chemicals (traditionally categorized as pheromones) and transmit them to the vomeronasal organ (VNO), [110] which is located below and in front of the nasal cavity, above the mouth. [111]
Haplorhini (/ h æ p l ə ˈ r aɪ n aɪ /), the haplorhines (Greek for "simple-nosed") or the "dry-nosed" primates is a suborder of primates containing the tarsiers and the simians (Simiiformes or anthropoids), as sister of the Strepsirrhini ("moist-nosed").
The rhinarium is a greatly enlarged, dry leathery pad that protects their nostrils while the animal digs. In this respect, too, they resemble the marsupial moles. In this respect, too, they resemble the marsupial moles.
Fish: Dorsal view of right-bending (left) and left-bending (right) jaw morphs [4]. Many flatfish, such as flounders, have eyes placed asymmetrically in the adult fish.The fish has the usual symmetrical body structure when it is young, but as it matures and moves to living close to the sea bed, the fish lies on its side, and the head twists so that both eyes are on the top.
Like other strepsirrhine primates, the nose and lip are covered by a moist skin called the rhinarium ("wet nose"), which is a sense organ. [83] The eyes of slow lorises are forward-facing, which gives stereo vision. Their eyes are large [41] [84] and possess a reflective layer, called the tapetum lucidum, that improves low-light vision.