In swimming, jellyfish and lampreys really pull their weight — and that's a good thing

Other than living in water, the bulbous jellyfish and the sinuous lamprey may seem to have little in common. And yet these two animals share a remarkable secret ability that allows them to move with great efficiency — they essentially pull, rather than push, their way through the water.

Instead...

via L.A. Times - Science http://ift.tt/1WtU2Hl