Photos

Ngorongoro Crater, located in the Serengeti hinterland in Tanzania, is a large, unbroken, unflooded volcanic caldera.

The crater, which formed when a giant volcano exploded and collapsed on itself some two to three million years ago, is 610 m deep and its floor covers 260 km2.

Aside from herds of zebra, Thomson's gazelle, and wildebeest, the crater is home to the "big five" of rhinoceros, lion, leopard, elephant, and buffalo. The crater plays host to almost every individual species of wildlife in East Africa, with an estimated 25,000 animals within the crater.

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The Thomson's gazelle (Eudorcas thomsonii) is named after explorer Joseph Thomson and, as a result, is sometimes referred to as a "tommie". It is considered by some to be a subspecies of the Red-fronted Gazelle and was formerly considered a member of the genus Gazella. Thomson's gazelles can be found in numbers exceeding 500 000 in Africa and are recognised as the most common type of gazelle in East Africa.

Thomson's gazelles are 53 to 67 cm tall and weigh 17 to 29 kg. They have light brown coats with white underparts and a distinctive black stripe. Their horns are long and pointed with slight curvature. The white patch on their rump extends to underneath the tail but no further.

A mistake sometimes made is the misidentification of Grant's Gazelles as Thomson's Gazelles. Although some Grant's do have the black stripe running across their sides, the white on their rump always extends above the tail.

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Ngorongoro

Thomson’s Gazelle

Cropped, increased sharpness and saturation.