5 Water Fleas, Females of Daphnia cristata (image) University of Gothenburg Caption These are photographs of five water fleas, females of Daphnia cristata, caught in August in five different lakes in the Örekilsälven river basin in the Munkedal district. In the pictures we can see examples of different sizes and styles of cap. It is particularly interesting that the fetuses in water fleas a and d have the same-shaped caps as their mothers. Credit University of Gothenburg Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.