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Gemsbok are the largest species in the genus Oryx. They stand about 1.2 m (4 ft) at the shoulder. [7] [8] The body length can vary from 190 to 240 cm (75 to 94 in) and the tail measures 45 to 90 cm (18 to 35 in). [9] Male gemsbok can weigh between 180 and 240 kg (400 and 530 lb), while females weigh 100–210 kg (220–460 lb).
Tylosema esculentum, with common names gemsbok bean and marama bean or morama bean, [2] is a long-lived perennial legume native to arid areas of southern Africa. Stems grow at least 3 metres (9.8 ft), in a prostrate or trailing form, with forked tendrils that facilitate climbing .
Active mainly during the day, the impala may be gregarious or territorial depending upon the climate and geography. Three distinct social groups can be observed: the territorial males, bachelor herds and female herds. The impala is known for two characteristic leaps that constitute an anti-predator strategy.
This reduced response minimises the time, energy, and risk of injury incurred during territorial encounters with animals which are less of a threat to the territory holder. The nasty neighbour effect is the converse of the dear enemy effect in which some species are less aggressive toward their neighbours than toward unfamiliar strangers.
Water is an essential requirement. The three distinct social groups are the female herds, the bachelor herds, and the territorial bulls. They are fast runners and communicate using a variety of visual and vocal communications. The primary breeding season for the black wildebeest is from February to April.
An analysis of the activity of blue wildebeest at the Serengeti National Park showed that the animals devoted over half of their total time to rest, 33% to grazing, 12% to moving about (mostly walking), and a little to social interactions. However, variations existed among different age and sex groups.
An analysis of the special elections held since November offers some clues about the party's changing fortunes. By Alissa Scheller and Daniel Marans. PUBLISHED: Monday, April 10, 2017 9:30 AM EST. UPDATED: Wednesday, May 31, 2017 6:00 PM EST
Buechner's analysis of the territorial behavior of the Ugandan kob, first observed by his wife Jimmie H. Buechner, was widely discussed by other wildlife biologists and ecologists and attracted the attention of popular authors such as Robert Ardrey. [3] [4]