Do crabs hunt for their food?

Crabs are known for scavenging, rather than actively hunting their food in a way that involves pursuit or capturing of the prey through chase or ambush like predators like cats do. Crabs rely more on opportunistic feeding or filtering as part of their diverse feeding patterns that can change as a function of what they encounter rather than a true strategy like that used by hunting species. While they might catch smaller or slower things or even kill weakened animals they come across, true hunting is not generally the strategy they rely on to get food.