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Pachycrocuta is an extinct genus of prehistoric hyenas.The largest and most well-researched species is Pachycrocuta brevirostris, colloquially known as the giant short-faced hyena as it stood about 90–100 cm (35–39 in) at the shoulder [1] and it is estimated to have averaged 110 kg (240 lb) in weight, [2] approaching the size of a lioness, making it the largest known hyena.
Males in most hyena species are larger than females, [34] though the spotted hyena is an exception, as it is the female of the species that outweighs and dominates the male. Also, unlike other hyenas, the female spotted hyena's external genitalia closely resembles that of the male.
The female striped hyena's genitalia are transiently masculinized, [17] although it lacks the enlarged clitoris and false scrotal sack noted in the female genitalia of the spotted hyena. [18] The female has 3 pairs of nipples. [19] Adult weight can range from 22 to 55 kg (49 to 121 lb), averaging at about 35 kg (77 lb).
The spotted hyena (Crocuta crocuta), also known as the laughing hyena, [3] is a hyena species, currently classed as the sole extant member of the genus Crocuta, native to sub-Saharan Africa. It is listed as being of least concern by the IUCN due to its widespread range and large numbers estimated between 27,000 and 47,000 individuals. [1]
Cave hyena (Crocuta (crocuta) spelaea and Crocuta ... A 2017 study estimated that on average cave hyenas weighed approximately 88 kilograms (194 lb), ...
Average number of sensory-associative structure neurons [a] Intraspecific variation [b] Method [c] Sensory-associative structure Binomial nomenclature Image Source Common fruit fly: 2,500* Optical fractionator Corpora pedunculata Drosophila melanogaster [65] House cricket: 50,000* Optical fractionator Corpora pedunculata Acheta domesticus [65 ...
One of the earliest studies to demonstrate its hunting abilities was done by Hans Kruuk, a Dutch wildlife ecologist who showed through a 7-year study of hyena populations in Ngorongoro and Serengeti National Park during the 1960s that spotted hyenas hunt as much as lions, and with later studies this has been shown to be the average in all areas ...
In terms of weight, it was originally stated to have weighed up to 380 kg (840 lb). [7] However, a later study estimated its body mass around 200 kg (440 lb) for specimen with skull length of 32.2 cm (12.7 in). [1] The other species were smaller, but still quite large compared to hyena species alive today. [citation needed]