"REPRODUCTIVE ISOLATION" needs to occur for speciation to happen.....
The pollutants in 1970 were the highest since recorded history and are declining steadily.
The reptile's body temperature rises when the external temperature rises. When the temperature drops, so does his body temperature. If a reptile feels cold because the external temperatures have made his blood cold, he'll lie in the sun to warm up. However, if the external temperature is too high, he scurries under a rock, dives in a pool or finds some kind of shade where he can cool down. Reptiles and other animals with ectothermic systems are vulnerable to extreme changes in temperature because they can't control their temperatures internally. They can control their body temperatures only by moving to an environment with a suitable ambient temperature.
1. Limited energy supply to other organisms
2. Herbivores will be scarce because they don’t mate
3. Avoid pollution
Adding sanctions and punishing offenders
