When you think about what keeps an aquarium thriving, water circulation might not be the first thing that comes to mind—but it should be. Circulating water in aquarium systems does far more than move ...

Researchers from Cornell University and the University of Pennsylvania have created a lifelike robotic lionfish with a circulatory system, reports Gizmodo. That circulatory system enables the fish to ...

Water and nutrients are important to keep living things alive and healthy. Animals, including humans, get these from what they eat and drink, but how do the water and nutrients get transported around ...