Their teeth are sharp-pointed, inter-locking and are perpetually replaced. A single croc might grow up to 3,000 teeth in its lifetime. How amazing is that? A small bird hops right info the prehistoric estuarine Crocodile's mouth and cleans its teeth.
It is believed the purpose of this is to give them ballast when diving, and are often ingested to aid digestion - crushing food by a grinding action within the gizzard of the stomach. 'Kill two birds with one stone!'
Swimming with the crocodileamazing
They swim into freshwater tributaries, lagoons, swamps and rivers. Saltwater crocodiles have been known to live there for the rest of their lives. So, do not think that they are only in the ocean.
Their scales are the same substance that hooves and nails are made from; keratin. One of the main functions of crocodile scales is for their protection.
When she hears the babies chirping, she digs them out of the nest and carefully carries them to the water's edge in her mouth. She will watch over them until they can look after themselves.
Juvenile crocodiles are eaten by the territorial mature males. Even with the mother's care, only about 20% survive to maturity, as goannas, snakes, sharks, birds and turtles will eat them, also.
All the propulsion and steering comes from the paddling of the flattened tail.
Saltwater crocodiles are now, unfortunately, becoming a public menace as their numbers increase. They have increased in the Northern Territory from about 5,000 to 80,000 in 38 years, and they are moving closer to residential areas.Is it up to us to stay out of their way? After all, these animals held unchallenged dominion over equatorial wetlands and waterways for 65 million years after dinosaurs had gone.
It is the larger crocodile that breeds and it would be these big ones that the crocodile hunter would target. The Parks and Wildlife have taken many large dangerous saltwater crocodiles away from areas that humans also frequent. They have been known to return within a few weeks, unless they are taken to a crocodile farm. It has been said, by interested parties, that even if dozens of crocodiles were culled, how can it be guaranteed that just one crocodile will not come into a proclaimed safe area. It only takes one reptile to kill one person.