of animal; no other animals on earth have them. If you see an animal with feathers, it’s undoubtedly a bird. Like mammals, birds are warm-blooded vertebrates with four-chambered hearts. However, they are more closely related to reptiles and are believed to have evolved from dinosaurs. ...
根据第一段的That dinosaurs ate the mammals(哺乳动物)that ran beneath their feet is not in doubt.(恐龙吃跑在它们脚下的哺乳动物是毫无疑问的),第二段的 two animals seemingly locked in a life-and-death fight.The one on top is a mammal.(两只似乎陷入生死搏斗的动物。上面的是哺乳动...
It says that Archaeopteryx is now a kind of second cousin, a little less closely related to the birds than previously thought. Archaeopteryx has historically been regarded as the most basal bird (avialan), but the discovery of the closely related Xiaotingia led Xu et al.(2011) to pull ...
Though modern birds are not very closely related to the Theropod dinosaurs, the Theropods provided vital information about the evolution of birds. Most birds of today might have evolved from the Archaeopteryx or some other dinosaur of similar size and physical features. The first birds appeared only...
Back to page index Gila Monster Scientific name:Heloderma suspectum Type of animal:Reptile Conservation status:Near Threatened The Gila monster is one of only two venomous lizards found in North America (the other being the closely-related Mexican beaded lizard). Although the species feeds mainly on...
The Amazon river dolphin is closely related to the Bolivian, Orinoco and Araguaian river dolphins (all of which are found in South America); some scientists consider some or all of these dolphins to be subspecies of the Amazon river dolphin, rather than separate species. ...
The fictitious frilled Dilophosaurus, shown in the award-winning film Jurassic Park is more closely related to the frilled lizard than the actual Dilophosaurus. Due to its aggressive display of frills, they are often misunderstood as dangerous creatures. The lizard is considered and asset in Australi...
They’re limited to warm areas with plenty of damp soil and leaf litter. Scientists believe Asian cockroaches are closely related to German cockroaches; the two are almost identical. Appearance: How to Identify Asian Cockroaches Asian roaches grow to between ½ and ¾ of an inch long as ...
which have pin-shaped teeth – differences in dentition have convinced specialists that the Mamenchisaurus is not closely related to the Diplodocus. Apart from the teeth, there was a significant difference in the shape of the head – the skull of our Asian giant looked like a box, because the...
Lobsters and other filter-feeding crustaceans first emerged millions of years before dinosaurs, and in fact the creatures we call horseshoe crabs (more closely related to spiders than modern crabs) appeared around 450 million years ago. But true crabs are a dinosaur-era phenomenon, as they arrived...