Questions for discussion

1. The pronghorn (Antilocarpa americana), a North American analogue of AFrican gazelles (Gazella sp.), evolved 4 million years ago, and for most of its existence was hunted by the now extinct American cheetah (Acinonyx trumanii). Why not introduce African cheetahs (Acinonyx jubatus) as predators for pronghorn to re-establish the pre-human interaction between predator and prey?

2. Many of the remainging megafauna in Africa and Asia are threatened with extinction over the next century. Why not contribute to their persistence by conserving them in reasonably natural game parks established in the Great Plains?

3. Does re-establishing populations of the Bolson tortoise ( Gopherus flavomargniatus) in the southwestern United States seem like a reasonable proposal?

4. Most conservationists regard feral horses (Equus caballus) and donkeys (E. asinus) as exotics that should be removed from rangelands, even though most of their evolutionary history Equidae were restricted to North America. Should efforts to remove feral horses and donkeys from western North America be halted?