Crocodiles are the largest reptiles in the world, and the closest living relatives of birds, with whom they share an ancestry from the archosaurs.

• The saltwater crocodile is the largest crocodile in the world.
• It is the most dangerous of all crocodiles.
• It holds the record for the largest crocodilians: It can weigh up to a ton, as much as a small car.
• While most crocodiles live in rivers and lakes, the saltwater crocodile is the only one that can...