Climate change reduced their habitat by about 90%, the mammoth population was genetically 'bottlenecked' as the mammoths in any one area are more genetically similar than mammoths born and living much further away. Genetic bottleneck results in poor genetic diversity which means the entire population is more likely to succumb to the same environmental factor (usually disease) though in this case it looks like humans also weakened the population further with hunting.






Reply With Quote


