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[2] [3] The word "ruminant" comes from the Latin ruminare, which means "to chew over again". The roughly 200 species of ruminants include both domestic and wild species. [4] Ruminating mammals include cattle, all domesticated and wild bovines, goats, sheep, giraffes, deer, gazelles, and antelopes. [5]
Ovis is a genus of mammals, part of the Caprinae subfamily of the ruminant family Bovidae. [1] Its seven highly sociable species are known as sheep or ovines. Domestic sheep are members of the genus, and are thought to be descended from the wild mouflon of central and southwest Asia.
These ten chromosomes form five unique pairs of XY in males and XX in females, i.e. males are X 1 Y 1 X 2 Y 2 X 3 Y 3 X 4 Y 4 X 5 Y 5. [108] One of the X chromosomes of the platypus has great homology to the bird Z chromosome. [109] The platypus genome also has both reptilian and mammalian genes associated with egg fertilisation.
The Etruscan shrew has a very fast heart beating rate, up to 1511 beats/min (25 beats/s) and a relatively large heart muscle mass, 1.2% of body weight. [3] The fur color on the back and sides is pale brown, but is light gray on the stomach. The fur becomes denser and thicker from fall through the winter. [8]
They have elongated and slender snouts that function as both mouth and nose, and which have electrosensors to find earthworms, termites, ants, and other burrowing prey. [7] This is similar to the platypus , which has 40,000 electroreceptors on its bill, but the long-beaked echidna has only 2,000, while the short-beaked echidna, which lives in a ...
The monkey's size differs depending on sex and species. Males from all species can range from 41 to 70 cm (16 to 28 inches) in head and body length, and in weight from 5.5 to 18 kg (12.13 to 39.7 lb). [6] Females can range from a weight of 2.4 to 13 kg (5.3 to 28.7 lb).
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Most of the teeth are larger in males, [25] and the canine teeth reach up to 4.5 cm (1.8 in) and 1 cm (0.39 in) long for males and females respectively. [22] Both sexes have 7–10 cm (2.8–3.9 in) long tails. [24] Male and female mandrills, showing size and color dimorphism