"This purple crab problem is very much like other ecological catastrophes that we've seen where one organism in a food web gets super abundant or out of control from loss of predation pressure ...

Millions of purple marsh crabs are churning through salt marshes along the East Coast, significantly disrupting the storage of carbon within these ecosystems. The small crabs' constant burrowing ...

The impacts of purple marsh crabs on salt marshes can be viewed from space. The crabs leave expansive, fan-shaped mudflats as they burrow into the marsh and consume large swaths of cordgrass.

Smaller variations of the purple crabs were discovered along the banks of large freshwater streams in Thailand, researchers said. Photo from Kla Aphimuk via Unsplash Deep within the rainforests on ...

The branching coral technique. Cuttlefish used this 12 percent more often when hunting purple mangrove crabs, which were better armed and armored than other crabs.CreditCredit...Matteo Santon ...

Opt for the elegant purple crab cebiche; the species is only found on the Pacific coast from Ecuador down to northern Chile, and it isn’t commonly served, even in Lima. The leche de tigre is ...