As countries around the world struggle to contain ever more destructive wildfires, some of them are turning to a natural solution to help – hungry goats.

Herds of goats are munching their way through underbrush in Portugal, Spain, Australia, Ireland, and the United States, creating local employment and healthier soil as they create firebreaks in places that are often hard to reach.

Four flocks of sheep and goats are now working on the hills above Barcelona, Spain. And these “fire flocks” are cleaning up the forest better than machines or men wielding gas-guzzling blowers.