美国短吻鳄是栖息于美国南部及墨西哥之河流、沼泽和湿地中的大型鳄目动物。美国短吻鳄的颜色可为深绿色、棕色或灰色。它们有宽广的圆形头部，有一张大嘴和许多牙齿，部分牙齿会向外突出而可见。美国短吻鳄的身体很宽，背部有数条突起的鳞脊。它们的腿横向伸出，移动时贴近地面，但奔跑时会将身体抬离地面。雄性美国短吻鳄体长 3.4 至 4.6 米，体重 200 至 626 公斤。雌性体长 2.6 至 3.0 米，体重 30 至 200 公斤。美国短吻鳄一生都会持续成长，因此体型能达到非常大的尺寸。
Latin Name
Alligator mississippiensis
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true
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american-alligator
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Animal Facts
American alligators lose and regrow teeth throughout their lives, they may go through 3000 teeth in a lifetime.
American alligator blood is extremely good at fighting off bacteria, meaning alligators that get seriously injured often do not get infections.
American alligators are among the first reptile species to be observed using tools; they balance branches on their heads to entice nest-building birds to come and pick them up, and they will then attack.
American alligators are integral to their environment because they create 'alligator holes' – small ponds that retain water through the dry season and provide habitats for multiple species.
Adult American alligators have the second strongest laboratory-measured bite force, beaten only by the saltwater crocodile.
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