Home> Animals > Reptiles Submit Your Photo Slide Show No 7 Of 53 Prev    Next Big-Crocodile  Publish Date : 08-06-2008 Author : Haui Hits : 89 Rating : 3 Of 5 Big Crocodile as seen in the Summit Nature Park in Panama. Crocodiles are among the more biologically complex reptiles despite their prehistoric look. Unlike other reptiles, they have a diaphragm, cerebral cortex and four-chambered heart. Their external morphology on the other hand is a sign of their aquatic and predatory lifestyle. Rate This Photo 5 - Best4321 Add Your Comment Your Name * Your Comment * Enter Validation Code * Prev    Next