There isn’t any dependable strategy to measure the age of an alligator, though varied methods can be utilized to acquire an affordable estimate. The most typical methodology is to measure development rings in bones and tooth. Every ring corresponds to a change in development fee, which generally happens yearly between the dry and moist seasons. Crocodiles are hunters who wish to ambush: they watch for fish or land animals to strategy, then take motion to assault. As cold-blooded hunters, they’ll survive for lengthy durations with out meals and infrequently have to hunt actively. Regardless of their gradual look, they’re the perfect predators round. Varied species have been noticed attacking and killing sharks. Crocodiles largely feed on invertebrates corresponding to mollusks and crustaceans, and vertebrates corresponding to fish, reptiles and mammals, relying on the species. Crocodile breeding season is between January and Could.
For males, the onset of sexual maturity happens once they attain a size of about 3 meters, and for females, once they attain a size of two to 2.5 meters. It usually takes about 10 years for each female and male crocodiles to achieve these lengths. Throughout the mating season, males appeal to females by banging their noses, spraying water from their noses, and making varied vocalizations. Bigger males of a group are typically extra profitable at attracting females. As soon as they handle to lure a feminine, the pair warmth up and rub the undersides of their jaws collectively. After the crocodiles mate, the feminine crocodile lays about 20-40 eggs yearly in a nest close to the riverbank. It covers the nest with leaves and different vegetation. Rotting vegetation retains the eggs heat and moist. Incubation temperature for crocodile eggs is 28-32 levels, relative humidity is 95-One hundred pc, incubation interval is 70-80 days. The feminine stays within the nest and guards the eggs till the eggs hatch. When the fry are able to hatch, they make sounds. The feminine crocodile opens the nest and carries the younger to the water. They instantly start to feed on crabs, shrimps and bugs. About half of the offspring die within the first 12 months resulting from predators.