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A study gave the bite force quotient (BFQ) of the cheetah as 119, close to that for the lion (112), suggesting that adaptations for a lighter skull may not have reduced the power of the cheetah's bite. [2] [10] Unlike other cats, the cheetah's canines have no gap or diastema behind them when the jaws close, as the top and bottom cheek teeth ...
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The earliest African cheetah fossils from the early Pleistocene have been found in the lower beds of the Olduvai Gorge site in northern Tanzania. [7]Not much was known about the East African cheetah's evolutionary story, although at first, the East and Southern African cheetahs were thought to be identical as the genetic distance between the two subspecies is low. [13]
Diagram in Darwin's On the Origin of Species, 1859. It was the book's only illustration. The letters A–L represent distinct descents. Each horizontal line represents 1000 generations. Descent A has 3 existent species after 10000 generations. Descent I has 2. Descents E, F have 1 each. The other descents have gone extinct.
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In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of stages of the life of an organism, that begins as a zygote, often in an egg, and concludes as an adult that reproduces, producing an offspring in the form of a new zygote which then itself goes through the same series of stages, the ...
[17] p161 Mimics may have different models for different life cycle stages, or they may be polymorphic, with different individuals imitating different models, as occurs in Heliconius butterflies. Models tend to be relatively closely related to their mimics, [ 19 ] but mimicry can be of vastly different species, for example when spiders mimic ants.