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Venezuelan biologist Carlos Alvarado, 34, has one hand on the young crocodile’s neck and another on its tail. With the help of some tape and calipers, he is measuring it, tracking its growth a few ...

Although malformations have occasionally been observed in young crocodiles in the wild, most defects have been studied in captive crocodilians. In a recent study of 550 crocodile embryos, 61 embryos ...