A team of scientists is investigating evolution in anoles, which are a type of lizard. First, the team obtains a small breeding population of anoles from their natural habitat in a tropical rain forest. Then, they release the population onto a tropical island. The team plans to return to the island in 5 years to observe the population and record any changes. Which mechanism could affect the evolution of the anoles, yet does not involve natural selection? A. competition for food from other lizards on the island B. genetic drift, due to the choice of anoles for the founding population C. decreasing fitness due to hand and feet shape, which may prevent anoles from climbing trees D. increasing fitness due to body coloration, which may provide camouflage from predators