Isabella moths / woolly bears have an interesting life cycle. Unlike many species of moths and butterflies, woolly bears spend the winter as full-grown caterpillars.

Do woolly bear caterpillars forecast winter weather? Woolly bears (or woolly worms in the South) have a reputation for forecasting the coming winter weather, according to the Farmer's Almanac.

Giant woolly bear caterpillars in Florida yards: The creature's stiff bristles (fuzzy spikes) are probably an effective defense against predators.

It mostly resembles the paler forms of the yellow woolly bear, and it’s interesting that the adult moth also bears a close resemblance to the adult yellow woolly bear moth.

The woolly bears are the caterpillar stage of medium-sized moths known as tiger moths. There are eight or more species of woolly bear caterpillars.

Woolly bear caterpillars became North America’s most recognizable caterpillar. Winter survivors pupate in the spring and emerge as moths with yellow-tan wings and sparse black dots. The moths are ...

At the edge of the Arctic in northern Canada, the annual migration of polar bears draws tourists, photographers, and scientists like Geoff York.

Spotted tussock moth caterpillars are the local version of woolly bears. (Photo by Bob Armstong) On another topic: A morning walk on the dike trail discovered signs of spider activity.

The woolly caterpillar is the larval stage of the Isabella tiger moth (Pyrrharctia isabella). Starting in spring, woolly bears metamorphose into the moth stage, mate, lay eggs, and die off.

The woolly bear caterpillar, also known as the fuzzy bear caterpillar or the woolly worm, is not able to predict the weather, but its color is based on its diet and age.