The ostrich (Struthio camelus), also known as the common ostrich, is either 1 or 2 species of large flightless birds native to Africa, the only living member(s) of the genus Struthio, which is in the ratite family. In 2014, the Somali ostrich (Struthio molybdophanes) was recognized as a distinct species. The ostrich shares the order Struthioniformes with the kiwis, emus, rheas and cassowaries. However, phylogenetic studies have shown that it is the basal extant member of Palaeognathae and is thus equally closely related to flighted tinamous. It is distinctive in its appearance, with a long neck and legs, and can run at up to about 70 km/h (19 m/s; 43 mph), the fastest land speed of any bird. The ostrich is the largest living species of bird and lays the largest eggs of any living bird (extinct elephant birds of Madagascar and the giant moa of New Zealand laid larger eggs).
Ostriches first appeared in "Running", when the Kratt Brothers went to the African grasslands; a female ostrich was shown among the animals running in the grasslands, and a male was shown running when Chris explained that some animals like to run fast.
Another female ostrich appeared in "Funny Faces" as 1 of several funny faced animals the Kratts saw while adventuring. While in Africa, Martin says that Africa is full of funny faces like ostriches.
2 more female ostriches also appear in "Don't Fence Me In" where they were shown running with Chris, Martin, and several other African animals.
A ostrich family (consisting of a male, female, and about 4 chicks) were shown in "Families" among the many amazing animal families. In addition to bringing them up, Martin stated that both parents make sure that the chicks are both fed and safe.
The most recent appearance of an ostrich was in "World of Legs". A female ostrich was among several animals shown when Zoboomafoo said that he had trouble figuring out what kind of legs Tiger Salamander Larva will have and that there are so many different kinds of legs.
- The scene of the running ostrich shown when Chris said that some animals like to run fast was shown in the Zoboomafoo theme song.