Quote:
I don't think a white zebra is really a sign of evolution. It's a fluke thing,
|
That's what mutations are - fluke things. If the fluke thing is beneficial, then natural selection will favor those with the mutated gene. It not, then the individual will not pass on their genes.
Evolution is the change of organisms over time. Random genetic mutations are a part of that. The appearance of genetic sports is indeed a glimpse into one of the factors that drive evolution.
However, unless that little zebra is protected, it's likely to become someone's lunch. So I doubt we'll see herds of white zebras anytime in the future.
BTW, there are several varieties of zebra across Africa. Some have brownish shadow stripes between the black stripes and some are much closer to being brown and black instead of white and black.