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In counting legs, this list follows the conventions adopted in the relevant literature. For example, millipedes with gonopods are listed by numbers that exclude leg pairs that become gonopods. [2] [3] [4] Animals have been selected so that each number from 0 to 55 leg pairs has one example listed.
The fossils are classified as belonging to the family Diacodexeidae; [1] [2] [3] their best-known and best-preserved member is Diacodexis. [2] These were small animals, some as small as a hare, with a slim build, lanky legs, and a long tail. Their hind legs were much longer than their front legs.
Four-legged animals such as dogs sometimes lose limbs and become artificially tripedal. There are some three-legged creatures in the world today, namely four-legged animals (such as pet dogs and cats) which have had one limb amputated. With proper medical treatment most of these injured animals can go on to live fairly normal lives, despite ...
The dugong (/ ˈ d (j) uː ɡ ɒ ŋ /; Dugong dugon) is a marine mammal.It is one of four living species of the order Sirenia, which also includes three species of manatees.It is the only living representative of the once-diverse family Dugongidae; its closest modern relative, Steller's sea cow (Hydrodamalis gigas), was hunted to extinction in the 18th century.
Because the eye has a retina, lens, and nerves connected to the brain, it’s possible it was a fully working eye at some point in the animal’s evolutionary journey. But through the years, the ...
Larval flies, or maggots, have no true legs, and little demarcation between the thorax and abdomen; in the more derived species, the head is not distinguishable from the rest of the body. Maggots are limbless, or else have small prolegs. The eyes and antennae are reduced or absent, and the abdomen also lacks appendages such as cerci.
Hippopotamuses have small legs (relative to other megafauna) because the water in which they live reduces the weight burden. [38] The toes are webbed and the pelvis rests at an angle of 45 degrees. [7]: 3, 9 Though chubby-looking, hippos have little fat. [7]: 3 The eyes, ears, and nostrils of hippos are placed high on the roof of their skulls ...
A platypus bill has three different types of receptor cells that allow the mammal to detect movement, and also the electric fields produced by the small creatures it hunts.