Hidden away among factories and warehouses in the industrial wilderness of Kitakagaya, some 10 minutes on foot from the metro station, is one of Osaka’s premier ...

Daphnia, also known as the water flea, is a small freshwater crustacean known for its sensitivity to pollution. To date, the impact of chemicals has been measured only at the whole organism level.

This microscopic animal, known as a water flea or Daphnia pulex, generates genetic variation in a bizarre way, according to a new paper in the journal Proceedings of the National Academy of Sciences.