Some jellyfish are not mere drifters as they also possess a unique ability that helps them swim against strong ocean currents, according to a new study. The researchers believe that the latest findings could help them better understand how these marine creatures with umbrella-shaped bell and trailing tentacles form “blooms,” large swarms of jellyfish consisting of hundreds or thousands of individuals.
from International Business Times http://www.ibtimes.com/some-jellyfish-can-detect-direction-ocean-currents-swim-against-them-1793708
