Global warming threatens the crocodiles

Climatic changes can have an effect not only on the living environment of animals, but also on their floor.

Basic factor, which determines floor in many reptiles - temperature. The kind of crocodile is determined by a temperature, at which ripen the eggs. The male is developed at a temperature of the nest of 32-33 degrees, if medium warmer or cooler - be born females. Usually temperature changes from the top of nest to the base, leading to the sexual variety.

Global warming can lead to a decrease of the number of man individuals in crocodiles and an increase in the number of females. This course of events will place these reptiles before the threat of disappearance.

Scientists assume that the climatic changes were one of the reasons for the disappearance of the dinosaurs of 65 millions. Analysis showed that the global temperature drop, caused by the clouds of ashes and dust as a result of volcanic activity, could lead to the suppressing predominance of males among the newly born dinosaurs.