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A typical precocial mammal has a gestation period almost four times longer than a typical altricial mammal of the same body size. [20] Precocial mammal species generally have greater adult body weights than altricial mammals as precocial mammals have markedly longer gestation periods than altricial mammals. [ 21 ]
Rothschild's giraffes mate at any time of the year and have a gestation period of 14 to 16 months, typically giving birth to a single calf. They live in small herds, with males and females (and their calves) living separately, only mixing for mating. [12]
Over 100 Masai giraffe live under human care in AZA accredited zoos in the United States. [19] At several zoos, Masai giraffe cows have become pregnant and successfully given birth. [20] Masai giraffes can suffer from giraffe skin disease, which is a disorder of unknown etiology that causes lesion on the forelimbs.
In mammals, pregnancy is the period of reproduction during which a female carries one or more live offspring from implantation in the uterus through gestation. It begins when a fertilized zygote implants in the female's uterus , and ends once it leaves the uterus.
Only animals from the classes of the Chordata phylum are included. [1] On average, captive animals (especially mammals ) live longer than wild animals. This may be due to the fact that with proper treatment , captivity can provide refuge against diseases , competition with others of the same species and predators .
Gerenuk reproduce throughout the year. Females reach sexual maturity at around one year, and males reach sexual maturity at 1.5 years, although in the wild they may only be successful after acquiring a territory (perhaps 3.5 years). [18] The gestation period is about seven months. They are born one at a time, weighing about 3 kg (7 lb) at birth.
Giraffes are known for their peaceful nature and their preference for living together in close family social groups. Although they rarely fight with each other, there are times when two male ...
The okapi and the giraffe are the only living members of the family Giraffidae. The okapi stands about 1.5 m (4 ft 11 in) tall at the shoulder and has a typical body length around 2.5 m (8 ft 2 in). Its weight ranges from 200 to 350 kg (440 to 770 lb). It has a long neck, and large, flexible ears.