Complex sentence: Unlike other reptiles, a crocodile has a cerebral cortex, a four-chambered heart, and the functional equivalent of a diaphragm, by incorporating muscles used for aquatic locomotion into respiration.
Split into simpler sentences: Unlike other reptiles, a crocodile has a cerebral cortex, a four-chambered heart. Crocodilians also have the functional equivalent of a diaphragm by incorporating muscles used for aquatic locomotion into respiration.