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Roadrunners and other members of the cuckoo family have zygodactyl feet. The roadrunner can run at speeds of up to 32 km/h (20 mph) [10] and generally prefer sprinting to flying, though it will fly to escape predators. [11] During flight, the short, rounded wings reveal a white crescent in the primary feathers.
The greater roadrunner (Geococcyx californianus) is a long-legged bird in the cuckoo family, Cuculidae, from the Aridoamerica region in the Southwestern United States and Mexico. The scientific name means "Californian earth-cuckoo".
The lesser roadrunner (Geococcyx velox) is a large, long-legged bird that is a member of the cuckoo family, Cuculidae. It is found in Mesoamerica. Its Latin name means "swift earth-cuckoo". Along with the greater roadrunner, it is one of two species in the genus Geococcyx.
Often generically referred to as "bone-crushing dogs" for their powerful teeth and jaws, and hyena-like features (although their dentition was more primitive than that of hyenas), their fossils are abundant and widespread; in all likelihood, they were probably one of the top predators of their ecosystems.
Canidae (/ ˈ k æ n ɪ d iː /; [3] from Latin, canis, "dog") is a biological family of dog-like carnivorans, colloquially referred to as dogs, and constitutes a clade. A member of this family is also called a canid (/ ˈ k eɪ n ɪ d /). [4] The family includes three subfamilies: the Caninae, and the extinct Borophaginae and Hesperocyoninae. [5]
When you think of “gory” animals, creatures like great white sharks, tigers, and vampire bats might come to mind. But the most gruesome defense mechanism of any animal belongs to something ...
The economic impacts of invasive species can be difficult to estimate especially when an invasive species does not affect economically important native species. This is partly because of the difficulty in determining the non-use value of native habitats damaged by invasive species and incomplete knowledge of the effects of all of the invasive species present in the U.S. Estimates for the ...
Dogs may be man's best friend -- but not if that man is mean to their owner. Japanese researchers learned that dogs don't like people who behave negatively towards their owner and may not even ...