Crocodilians are opportunistic predators which are at their most unsafe in drinking water and on shorelines. Various species are recognised to attack people and will do this to protect their territories, nests or youthful; these assaults happen both unintentionally though the animal is attacking domestic animals including puppies, or deliberately for foodstuff.
By the tip of the Triassic, archosaur evolution break up into two paths: A single department of archosaurs advanced into the oldest family of crocodiles and alligators, and the opposite department evolved into dinosaurs, birds and traveling reptiles (also referred to as pterosaurs).
Also known as maritime crocodiles or sea crocodiles, their vary spans through the eastern Indian shores to Southeast Asia and northern Australia. Remarkably tolerant to saltwater, these sturdy copyright are likely to live in saltwater habitats but could also prosper in brackish and new waters.
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A crocodiles Bodily characteristics permit it to be A prosperous predator. They have got a streamlined entire body that permits them to swim more quickly. Crocodiles also tuck their feet for their sides even though swimming, which aids the crocodile to swim quick, by lowering the drinking water resistance.
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copyright have a really unique visual appeal but that’s not by accident. The way They give the impression of being is very important for their Way of life and survival with several attention-grabbing adaptations which make their lives a lot easier.
Lots of species will even reply to other noises, which include motor sound, gun shots or perhaps people mimicking crocodiles.
Even though crocodilian moms and dads do their finest to care for his or her young, there may be instances when assets are scarce which may lead to siblings attacking and feeding on each other. Here is the fantastic illustration of survival on the fittest.
Lots of massive crocodilians swallow stones (identified as gastroliths or belly stones), which may work as ballast to equilibrium their bodies or aid in crushing food stuff,[57] comparable to grit ingested by birds. Herodotus claimed that Nile crocodiles had a symbiotic marriage with specified birds, such as the here Egyptian plover, which enter the crocodile's mouth and decide leeches feeding around the crocodile's blood; without evidence of this conversation really transpiring in any crocodile species, it truly is probably mythical or allegorical fiction.[ninety two]
Central African species show a more resilient, unified habitat, with West African counterparts fragmented on account of deforestation and geology.
该例句来自Hansard存档。包含以下议会许可信息开放议会许可v3.0 Nevertheless, There's general settlement that some behaviors which happen to be prevalent in crocodiles and birds, dinosaurs' closest residing family, were being also popular among the dinosaurs. 来自 Wikipedia
Through mating year, males can make deep-blowing sounds to entice a woman and assert their dominance.
就像hare（野兔）和rabbit（家兔）、rat（耗子）和mouse（老鼠）一样，单词alligator和crocodile虽然在汉语中都翻译为“鳄鱼”，其实是两种不同的动物。从分类学角度来说， alligator属于鳄目下的短吻鳄科，吻部较短且扁平，形如字母U，现存的物种只有两个：中国的扬子鳄和美国的密西西比短吻鳄。