Crustacean Apr 2026

: Tiny but essential links in the marine food web, supporting massive animals like whales.

: Their bodies are usually segmented, often featuring a cephalothorax (a fused head and trunk). Diverse Habitats and Ecological Roles crustacean

Crustaceans are primarily , found in nearly every marine and freshwater environment on Earth. : Tiny but essential links in the marine

While they vary immensely in shape and behavior, most crustaceans share several defining biological traits: filling roles as predators

: They are as ubiquitous in the ocean as insects are on land, filling roles as predators, scavengers, and vital food sources for larger animals.

: A few groups have adapted to life on land, including woodlice (sowbugs/pillbugs) and certain land crabs, though they still require damp environments to breathe through their gills. Common Examples