The tiny freshwater flea Daphnia pulex has nearly 31,000 genes, compared to our 23,000. The finding is part of a larger report published Thursday in the peer-reviewed journal Science by members of ...

The water flea species Daphnia pulex is barely more than a millimeter long, is completely translucent, has no clear divisions between their various body parts…and has the largest genome of any ...

Tiny Water Flea's Promising Role: Environmental Monitor When the water flea senses predators in its environment, it suits up, growing tail spines, a pointy helmet and other armor.

Invasive species cause some $120 billion in damages across North America yearly – and that’s just direct costs. A study of one species in one Wisconsin lake indicates the real toll is much higher.

Tiny water flea's promising role: environmental monitor When the water flea senses predators in its environment, it suits up, growing tail spines, a pointy helmet and other armor.