Weather radar shows 30 metric tons of grasshoppers swarmed Las Vegas one night
The most intensely lit U.S. city shows the impact of artificial light on insects on a megascale
![piles of grasshoppers on a sidewalk](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2021/03/033021_SM_grasshoppers_feat.jpg?fit=1030%2C580&ssl=1)
Researchers have now unveiled (big!) numbers for the grasshoppers, mesmerized by Las Vegas’ intense artificial lighting, that crowded into the city on July nights in 2019 (seen piling up on a sidewalk here the night before the peak invasion).
BRIDGET BENNETT/AFP via Getty Images