Scientists think that by deliberately eating plants laced with toxic alkaloids, the caterpillars either poison the invaders inside them or boost their own immune systems. A study found that woolly ...

Woolly bear season has arrived. The fuzzy black and brown caterpillars are appearing in record numbers this year, crossing roads, climbing house walls, hanging out in driveways, and curling up ...

The woolly bear caterpillar, also known as the fuzzy bear caterpillar or the woolly worm, has fuzzy bristles that are black ...

A small, fuzzy, black caterpillar was waiting for me ... They don’t stick into the skin like quills or are poisonous. This type of woolly bear eats herbaceous and woody plants such as magnolias ...