We know that plankton are too small and weak to swim on their own, so how do these little drifters get to where they need to go? Seeking answers to this question along with other insights about our oceans, scientists have built underwater robots that mimic plankton behavior and can be used to monitor surrounding ocean conditions, with their early experiments confirming long-held theories on how plankton do what they need to do to survive.
via New Atlas
Image: Jaffe Lab for Underwater Imaging/Scripps Oceanography