PORTLAND, Ore. (KOIN) — If you’re out and about on the trails this fall, you might run into a fuzzy black and orange fellow inching across your path. The woolly bear caterpillar, also known as ...

The life of a growing caterpillar isn't easy - diseases, parasites and infectious bacteria lurk at every turn ... inject their own eggs into a caterpillar's body for growing larvae to feed off its ...