Jerry Hollis took this photo in the mountains above the Valley of what appears to be a common crab spider (Xysticus cristatus ...

This roly-poly critter isn’t even an insect — it’s a crustacean. More like a crab than an ant, pillbugs breathe through gills. They’re known for their ability to curl into tight balls when ...

While crab spiders do indeed prey on pollinators, they also eat pest insects like grasshoppers and katydids, reducing their populations over time. Studies have also shown that plants that host ...