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Male giraffes assess female fertility by tasting the female's urine to detect oestrus, in a multi-step process known as the flehmen response. [90] [98] Once an oestrous female is detected, the male will attempt to court her.
In okapi, the male's ossicones are smaller in proportion to the head, and taper towards their tips, forming a sharper point than the comparatively blunt giraffe ossicone. Whereas female giraffes have reduced ossicones, female okapi lack ossicones entirely. The morphology of ossicones in the extinct relatives of giraffes and okapi varies widely.
Males are nearly 89–105 cm (35– 41 + 1 ⁄ 2 in) tall, and the shorter females 80–100 cm (31–39 in); the head-and-body length is typically between 140 and 160 cm (55 and 63 in). Males weigh between 31 and 52 kg (68 and 115 lb); females are lighter, weighing 28–45 kg (62–99 lb). The species is sexually dimorphic. The tail, that ends ...
A Penn State researcher has been trying to get to the bottom of the age-old question of why giraffes have long necks. Focus on research: Female giraffes drove the evolution of long necks, new ...
Male giraffes (Giraffa camelopardalis), such as the two pictured here, often engage in necking for various reasons, including combat and competition over females. Males with longer necks and heavier heads are at an advantage in duels and thus have greater access to estrous females, suggesting that the giraffe's distinctive long neck may be a ...
Related: Older Giraffe’s Kind Gesture Toward Baby Giraffe Is Melting Hearts. Interesting Giraffe Facts. Giraffes actually fight using this same technique to establish dominance during mating season.
The pelvis is, in general, different between the human female and male skeleton. [12] [13] Although variations exist and there may be a degree of overlap between typically male or female traits, [12] [13] the pelvis is the most dimorphic bone of the human skeleton and is therefore likely to be accurate when using it to ascertain a person's sex ...
Nyasi was born Aug. 9 and is the first giraffe born at the zoo in 12 years. The name Nyasi was chosen by a thin margin after nearly 4,000 votes were cast, Shepherd said.