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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.
Because of this, camelids have to lie down by resting on their knees with their legs tucked underneath their bodies. [1] They have three-chambered stomachs, rather than four-chambered ones; their upper lips are split in two, with each part separately mobile; and, uniquely among mammals, their red blood cells are elliptical. [2]
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 ...
Tylopoda (camels, llamas, and alpacas) and chevrotains have three-chambered stomachs, while the rest of Ruminantia have four-chambered stomachs. The handicap of a heavy digestive system has increased selective pressure towards limbs that allow the animal to quickly escape predators. [35]
Huacaya alpacas share digestive tract anatomy with their biological family, Camelidae. Camelids are herbivore ruminants classified into a special suborder, Tylopoda, because they only have three stomach compartments. They are not considered "true ruminants" like cattle, sheep, and goats which have four stomach compartments.
Pseudoruminant is a classification of animals based on their digestive tract differing from the ruminants. Hippopotami and camels are ungulate mammals with a three-chambered stomach (ruminants have a four-chambered stomach) while equids (horses, asses, zebras) and rhinoceroses are monogastric herbivores. [1] [2]
Tardigrades have a short plump body with four pairs of hollow unjointed legs. Most range from 0.1 to 0.5 mm (0.004 to 0.02 in) in length, although the largest species may reach 1.3 mm (0.051 in). The body cavity is a haemocoel , an open circulatory system, filled with a colourless fluid.
The body is stocky and the legs short. It moves with a slow, waddling gait, but can perform a quick hop when pursued. The feet have five toes with large claws which assist the animal in climbing. The stomach is divided into three compartments by constrictions in the gut and is among the most complex of any rodent. [4] Its karyotype has 2n = 40 ...