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Ornithomimosauria ("bird-mimic lizards") are theropod dinosaurs which bore a superficial resemblance to the modern-day ostrich.They were fast, omnivorous or herbivorous dinosaurs from the Cretaceous Period of Laurasia (now Asia, Europe and North America), as well as Africa and possibly Australia. [8]
Although a common classroom experiment is often explained this way, [438] Bernoulli's principle only applies within a flow field, and the air above and below the paper is in different flow fields. [439] The paper rises because the air follows the curve of the paper and a curved streamline will develop pressure differences perpendicular to the ...
Like the ostrich, it is a fast-running, powerful bird of the open plains and woodlands. Also native to Australia and the islands to the north are the three species of cassowary . Shorter than an emu, but heavier and solidly built, cassowaries prefer thickly vegetated tropical forest.
Palaeognathae (/ ˌ p æ l i ˈ ɒ ɡ n ə θ i /; from Ancient Greek παλαιός (palaiós) 'old' and γνάθος (gnáthos) 'jaw') is an infraclass of birds, called paleognaths or palaeognaths, within the class Aves of the clade Archosauria.
An ostrich, the co-fastest extant biped [1] along with the red kangaroo, at 70 km/h (43 mph) [2] [note 1]. Bipedalism is a form of terrestrial locomotion where an animal moves by means of its two rear (or lower) limbs or legs.
The North African ostrich is the closest relative to the extinct Arabian ostrich from Western Asia. Following analyses of mtDNA control region haplotypes that confirmed the close relationship of the Arabian and the North African subspecies, the North African subspecies was considered suitable for introduction into areas where the Arabian ...
Ostrich oil is another product that is made using ostrich fat. Ostriches are of the genus Struthio in the order Struthioniformes , part of the infra-class Palaeognathae , a diverse group of flightless birds also known as ratites that includes the emus , rheas , cassowaries , kiwis and the extinct elephant birds and moas .
The ostrich is the fastest bird on land, as well as the fastest running animal on two legs. [51] [52] The highest reliably measured running speed for ostriches is 61 km/h (38 mph), obtained by speedometer reading when a car was chasing an ostrich in a straight line chase to force it to move as fast as it could. [53]