Decapods. This order includes crabs, lobsters, crayfish, shrimp, and prawns.
Isopoda. This order is made up of isopods, including terrestrial species like the potato bug and aquatic species like the giant isopod. Some eat dead matter, others are filter feeders, and some are parasites, mostly of fish.
Isopods like woodlice are a common sight under rotting vegetation, but these small arthropods have some pretty big cousins. Giant isopods live on the ocean floor, and can reach up to 40 cm (16 in) in length! Like their terrestrial cousins, giant isopods feed primarily on debris and small bits of organic matter, but will also scavenge carcasses where available.
(Image: A giant isopod (Bathynomus giganteus) by the Monterey Bay Aquarium)
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I don't think they were even aware of each other. The click beetle was playing dead, and the isopod scuttled up and nuzzled it. Perhaps it thought crawling under the beetle would yield a dark crevice, and apparently considered this a success.
I think both are "hiding" with an endearing lack of skill or cogitation.
Flipped this piece of plywood while at a neighbor’s house and found this delightful little yellow isopod, Philoscia muscorum. There’s also a small patch of mycelium on the plank.
Many wild isopods experience color variations from the norm, including yellow. So cute.
Euphausiacea. This order is made up of krill, small marine crustaceans. Most species form large swarms, and they are important for the marine food chain.
Isopoda. This order is made up of isopods, including terrestrial species like the potato bug and aquatic species like the giant isopod. Some eat dead matter, others are filter feeders, and some are parasites, mostly of fish.