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The coat patterns of modern giraffes may also have coincided with these habitat changes. Asian giraffes are hypothesised to have had more okapi-like colourations. [6] The giraffe genome is around 2.9 billion base pairs in length, compared to the 3.3 billion base pairs of the okapi. Of the proteins in giraffe and okapi genes, 19.4% are identical.
Southern giraffes have rounded or blotched spots, some with star-like extensions on a light tan background, running down to the hooves. They range from South Africa, Angola, Namibia, Botswana, Zambia, Zimbabwe, Mozambique. Their approximate population is composed of 44,500 to 50,000 individuals. [5]
South African giraffes usually live in savannahs and woodlands where food plants are available. Giraffes are herbivorous. They feed on leaves, flowers, fruits and shoots of woody plants such as Acacia. South African giraffes live in a fission–fusion society system based on factors such as sex, age, season, and kinship. [7]
The “plain brown” giraffe was seen on a game reserve in southwestern Africa, a wildlife organization said.
The current IUCN taxonomic scheme lists one species of giraffe with the name G. camelopardalis and nine subspecies. [1] [7] A 2021 whole genome sequencing study suggests the northern giraffe as a separate species, and postulates the existence of three distinct subspecies, [8] and more recently, one extinct subspecies.
Giraffes sleep so little for two main reasons: to protect themselves (and their babies) from predators and because they're constantly on the move for food. As Fitz mentioned in the video they eat ...
The U.S. Fish and Wildlife Service has proposed new protections for giraffes, saying their populations are threatened by poaching, habitat loss and climate change. Giraffes need endangered species ...
Megaherbivores also have high lifespans, with giraffes living 25 years, rhinoceroses and hippopotamuses 40 years, and elephants 60 years. The nine megaherbivore species are split into four distinct families: Elephantidae (2 genera and 3 species), Rhinocerotidae (4 genera and 4 species), Hippopotamidae (1 species), and Giraffidae (1 species).