Zooplankton include one of Earth's most abundant animals, the copepod: a microscopic crustacean ranging in size from 0.5 to 15mm. Large copepods are eaten by larval fish, which scientists also ...

A strange tiny species of crustacean has challenged the way we think about natural selection and evolution. This microscopic animal, known as a water flea or Daphnia pulex, generates genetic ...

Hermit crabs are omnivorous scavengers, eating microscopic mussels and clams, bits of dead animals, and macroalgae. These crustaceans have been misnamed for two reasons: First, they’re not true ...

Scientists track Antarctic krill via satellite to monitor ocean health amid climate change and fishing threats.

As larvae, they start out eating microscopic food like unicellular algae, planktonic animals, and small crustaceans. As they grow, their diet shifts almost exclusively to small crustaceans called ...