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Quadrupedalism is a form of locomotion where animals have four legs that are used to bear weight and move around. An animal or machine that usually maintains a four-legged posture and moves using all four legs is said to be a quadruped (from Latin quattuor for "four", and pes, pedis for "foot").
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.
[36] [37] The very earliest tetrapods would have been animals similar to Acanthostega, with legs and lungs as well as gills, but still primarily aquatic and unsuited to life on land. The earliest tetrapods inhabited saltwater, brackish-water, and freshwater environments, as well as environments of highly variable salinity.
The chick was born with four legs instead of tow, a genetic condition known as polymelia. ... This is not the only rare animal in the news as of late. Other Rare Animals That Have Been Born This Year.
Centipedes have one pair of legs per body segment, with typically around 50 legs, but some species have over 200. The terrestrial animals with the most legs are the millipedes. They have two pairs of legs per body segment, with common species having between 80 and 400 legs overall – with the rare species Illacme plenipes having up to 750 legs ...
Like most mythical reptiles, the Catalan dragon (Catalan drac) is an enormous serpent-like creature with four legs and a pair of wings, or rarely, a two-legged creature with a pair of wings, called a wyvern. As in many other parts of the world, the dragon's face may be like that of some other animal, such as a lion or a bull.
The species is a tetrapod, its four legs adapting the fish-like body plan for walking on land. The specimen is 26 m (85 ft) long. The specimen is 26 m (85 ft) long. As embryos, vertebrates still have a notochord; as adults, all but the jawless fishes have a vertebral column, made of bone or cartilage , instead. [ 7 ]
The Chinese dragon, is a creature in Chinese mythology and is sometimes called the Oriental (or Eastern) dragon. Depicted as a long, snake-like creature with four legs, it has long been a potent symbol of auspicious power in Chinese folklore and art. This type of dragon, however, is sometimes depicted as a creature constructed of many animal ...