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As with the related genus Barosaurus, the very long neck of Diplodocus is the source of much controversy among scientists. A 1992 Columbia University study of diplodocid neck structure indicated that the longest necks would have required a 1.6-ton heart – a tenth of the animal's body weight.
If you're wondering what not to feed wild birds, our expert guide can help.
Diplodocoidea is a superfamily of sauropod dinosaurs, which included some of the longest animals of all time, including slender giants like Supersaurus, Diplodocus, Apatosaurus, and Amphicoelias. Most had very long necks and long, whip-like tails; however, one family (the dicraeosaurids ) are the only known sauropods to have re-evolved a short ...
Diplodocus, depicted with spines limited to the mid-line of the back. Diplodocids were generally large animals, even by sauropod standards. Thanks to their long necks and tails, diplodocids were among the longest sauropods, with some species such as Supersaurus vivianae and Diplodocus hallorum estimated to have reached lengths of 30 meters (100 ft) or more. [3]
The chicks of birds in many families, such as the waterfowl, waders, and gamebirds, are usually nidifugous. The opposite of nidifugous organisms are nidicolous ( / n aɪ ˈ d ɪ k ə l ə s / ny- DIK -ə-ləs ; from Latin nidus "nest" and -colus "inhabiting") organisms; a nidicolous organism is one which stays at its birthplace for a long time ...
The current population of wild kagus is about 250–1000 birds, and the species is the focus of a decades-long conservation effort. The kagu's initial decline was caused by subsistence hunting. The bird was trapped extensively for the European pet trade [5] and for museums and zoos until it was afforded protection. [14]
Tail wagging has long been associated with a pup's mood, but the fascinating -- and often telling -- things about the appendage don't stop there. Here are 10 things you didn't know about dogs' tails.
In addition, the most distal vertebrae develop a biconvex shape and together form a long, bony rod at the end of the tail, often referred to as a “whiplash tail.” Increased caudal count and a whiplash tail may be features shared by all members of the Diplodocoid group, but, due to a scarcity of evidence, this has yet to be proven. [29]