When you finish your dissertation and present the results at a conference of your peers it can be thrilling, affirming, daunting, terrifying. It can make all those late nights worth it, all the statistics and the slogging. You might get praised by someone you really respect, or get to shake the hand of a hero you referenced a million times in your lit review. You might get some crabby question from the competition who doesn’t agree with your findings. You might spill cheap coffee on your new suit and have to change in the car. You might get a million different outcomes.

You almost never get this.

Are Beavers Nature’s “Little Firefighters”?

It’s about dam time: Beavers are acknowledged for their firefighting skills in five recent blazes.

When a wildfire tears through a landscape, there can be little left behind.

A new study, though, suggests that beavers may be protecting life around streams, thanks to their signature dams. Satellite images from five major wildfires in the United States revealed that corridors around beaver habitat stayed green even after a wildfire.

Millions of beavers live in forests across North America, and they make their homes in a particular way: By stacking piles of branches and rocks in a river’s path, they slow its flow and create a pool of calm water to call home. They even dig little channels radiating out from their pools to create “little water highways,” said Emily Fairfax, an assistant professor at California State University Channel Islands who led the study.

Emily presented her research THREE DAYS AGO at the conference in San Francisco. Three DAYS!!! That’s how long it takes for star research to find its way into a front page article. Please tell me that someone is putting this on the governors desk with his coffee and making sure he pays attention.

Fairfax wondered whether beaver dams would insulate riparian vegetation, as well as the fish and amphibians that live there, from wildfire damage. Wildfires course through landscapes naturally, but blazes will become more frequent as climate change dries out forests.

Fairfax sifted through records of past fires in the U.S. Geological Survey’s database and chose five recent fires that occurred in beaver habitat. She then analyzed the “greenness” of vegetation before, during, and after the fires. She used measurements from NASA’s Landsat satellites, which use red and near-infrared light to detect the lushness of vegetation.

Fairfax found that vegetation along sections of a river without dams burned straight to the river’s edge. But for sections with a resident beaver, “essentially, the plants don’t know a fire is happening.” The channels dug by beavers acted like irrigation channels, said Fairfax, keeping vegetation too wet to burn, even during drought. In all, stretches of river without beavers lost 51% of their vegetation greenness, compared with a 19% reduction for sections with beavers.

EMILY you rising star of beavers! We knew you’d be making a difference. With your embrace of technology and your love of nature it was destiny. We never even doubted it for a moment.

But we never even hoped how quickly it would all happen.