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Geographical distributions of terrestrial or aquatic taxa that are broken up by oceans can be explained by either oceanic dispersal or vicariance in the form of fragmentation of a previously contiguous landmass. Oceanic dispersal may be the most important factor in the distributions of animals. Present distribution patterns of animals are largely a result of shifting landmasses. Distribution of animals is limited by various environmental conditions which the most restrictive barriers are the separation of the land by water, high mountain ranges and deserts. Extinction is a gradual process...

Naturally, organisms live together in an ecosystem for a long period of time. However, when humans entered this system, the natural phenomena become altered. Wildlife and people can dwell harmoniously if and only if the animals feel safe from human threat and if animals are not causing damage to humans. Conflicts between human and wildlife populations are emerging as a major conservation issue worldwide. Human-wildlife conflict affects species, particularly large mammals. Due to such conflict, most are either critically endangered or declining rapidly. One major cause for human-wildlife...

Grants gazelles are one of the different gazelle groups. They are larger in size than other gazelles. The male horn is longer, thicker and more strongly ringed. They are generally mixed feeders that both browse and graze. They feed on herb and shrubs foliages during the late wet and dry seasons. They feed on grass while it is young and green. The distribution of Grants gazelle extends from southern Sudan and Ethiopia, throughout Kenya and into northern Tanzania. They are gregarious animal. Grants gazelle is not endangered; however, the majority of species and subspecies within this genus are...