ewurm said:For most of us it is. But that doesn't explain the goldfish population in the Mississippi river, or the snakehead populations in varying bodies of water.![]()
As well as the caiman population, flocks of parrots, and peacock bass and tilapia in Florida. The bullfrog's decimating Arizona, cane toads infesting Australia, sika deer in England, the decimation of birds in Guam at from brown tree snakes. The 80's problem of Mediterranian fruit flies in California, African killer bees in South America, goats on Hawaiin hillsides, anglo europeans in north america, etc. etc. etc.