Which animal is this?

The scimitar oryx ('Oryx dammah'), also known as the Sahara oryx, is a species of Oryx once widespread across North Africa.

This antelope stands a little more than 1 metre (3.3 ft) at the shoulder. The males weigh 140–210 kg (310–460 lb) and the females weigh 91–140 kg (201–309 lb). The coat is white with a red-brown chest and black markings on the forehead and down the length of the nose.

The scimitar oryx formed herds of mixed sexes of up to 70 members, usually guided by the bulls. They inhabited semideserts and deserts and were adapted to live in the extreme heat, with their efficient cooling mechanism and very low requirement of water. Scimitar oryx feed on foliage, grasses, succulent plants and plant parts during the night or early morning. Births peak between March and October. After a gestation of eight to nine months, one calf is born. Soon after, the female has a postpartum estrus.

The scimitar oryx was once widespread across northern Africa. Its decline began as a result of climate change during the neolithic period, and later it was hunted extensively for its horns. Today, it is bred in captivity in special reserves in Tunisia, Morocco and Senegal and on private exotic animal ranches in the Texas Hill Country. In 2016 a reintroduction program was launched and currently, a small herd has been successfully reintroduced in Chad.

The unicorn myth may have originated from sightings of a scimitar oryx with a broken horn.