Despite the harsh desert conditions in the area, one can find a wide variety of plants and animals that have adapted to survive. The wildlife mostly consist of small animals that can survive with little water, including a number of arthropods, small reptiles and small mammalians such as rodents or jackals. Larger animals include antelopes (mainly oryxes and springboks) and ostriches. During the flood season, several migrant bird species appear along the marshes and rivers. Much of the Sossusvlei and Namib fauna is endemic and highly adapted to the specific features of the Namib. Most notably, fog beetles such as the Namib Desert Beetle have developed a technique for collecting water from early morning fogs through the bumps in their back.