PART 1 SUMMARY: According to the evolutionary tree in the Crotalus Atrox population on Kalorme at around 7,500,000 years ago a bottleneck event occurred due to the collision of Darkland which is desert and Kalorme which is grassland. When this collision happened the grassland turned into a desert and was renamed "Great Kalorme." The biggest change in the environment was the temperature and increase of global warming. Also there was a difference in the colors of plants and land which made it difficult to camouflage.
PART 2 SPECIATION EVENT: The cause of the speciation event was the drastic change in temperature. The differences between the two subspecies was that one developed how to handle the heat and developed new patterns in its scales to camouflage better. This helped during times of striking prey. The other subspecies unfortunately did not develop any sort of adaptation to the new environment and died off.
PART 3 NEW SUBSPECIES A: This new subspecies had some adaptations but they just were not enough to sustain the rough life in the desert. This subspecie developed the ability to know to go into burrows to avoid the heat and to keep moving to not overheat and basically cook itself in the steaming hot desert sun. This subspecies was still too noticeable in the desert. It had not means of camouflage and were constantly being taken by hawks and eagles as a meal. Eventually so many were taken there were barely any left.
PART 4 SUBSPECIES B: The adaptations for this species were on the bat and really helped it sustain life. Of course it developed knowing how to avoid overheating by going into burrows and continuously moving. But the one adaptation that definitely helped was the development of more patterns in the scales. There were so many new patterns that could fit any area that was found in the desert. Now the subspecie could hide and not be seen by its prey when going for a strike. Also hawks and eagles can not find them as easily.
PART 2 SPECIATION EVENT: The cause of the speciation event was the drastic change in temperature. The differences between the two subspecies was that one developed how to handle the heat and developed new patterns in its scales to camouflage better. This helped during times of striking prey. The other subspecies unfortunately did not develop any sort of adaptation to the new environment and died off.
PART 3 NEW SUBSPECIES A: This new subspecies had some adaptations but they just were not enough to sustain the rough life in the desert. This subspecie developed the ability to know to go into burrows to avoid the heat and to keep moving to not overheat and basically cook itself in the steaming hot desert sun. This subspecies was still too noticeable in the desert. It had not means of camouflage and were constantly being taken by hawks and eagles as a meal. Eventually so many were taken there were barely any left.
PART 4 SUBSPECIES B: The adaptations for this species were on the bat and really helped it sustain life. Of course it developed knowing how to avoid overheating by going into burrows and continuously moving. But the one adaptation that definitely helped was the development of more patterns in the scales. There were so many new patterns that could fit any area that was found in the desert. Now the subspecie could hide and not be seen by its prey when going for a strike. Also hawks and eagles can not find them as easily.