We are witnessing Evolution and Adaptation in action.
Florida seems to be experiencing some overpopulation of some iguanas.
The small rise in Earth's average temperature seems to favor the green beasts reproduction.
Imagine them going unchecked, feeding without predictors or population control; growing ever-larger with each generation; then becoming the dinosaurs we thought were extinct..
Remember, if scientists are correct and there were at least 2 Ice Ages (with some claiming as many as 5).
Do we know how hot it gets between the Ice Ages?
Remember those cold sorting stadiums? The more human thermal rods that entered that enclosed stadium, the warmer it got. What happens when the human population on Earth doubles every 10 or so years? The Earth's surface and atmospheric temperature rises. I would suspect about 1/2 degree every 5 to 10 years at the present population growth. Now include all their thermal meat-sticks that also double at about the same rate.
Hummm.... I say, whilst scratching my head.