PTERYGOTE insects originally evolved as terrestrial animals, but various families of Hemiptera have since colonized aquatic habitats. Corixids live on the bottom, feeding mainly on algae and detritus.

This exclusive excerpt from "On Eating Insects: Essays, Stories and Recipes" shows how eating insects may not be as sustainable as it seems.

For insects, the Amazon’s canopy contains a dazzling multiverse. A new study finds that high in rainforest trees, insects live in ecosystems that vary wildly from the forest floor on up.