Does pollution effect animals to mutate?

Yes, pollution can cause animals to mutate. A fish in South Korea has turned into a van-size, 4 legged beast with tail. It was found in Han river when scientists poured chemicals into the river due to a fail experiment. The "host" killed about a hundred and was finally dead when Korea released "Yellow Agent", a smoke bomb with chemcals tested to kill the "host but isn't quite sure if it affects humans. These mutated animals mainly come from pollution.

1982-mutated worm was found. it killed 2 people causing virus.