Trilobites: Same Oceans, Similar Prey, Two Very Different Necks Biologists studied cormorants and penguins that hunt fish in frigid seas and found that cormorants save energy by only moving their necks when seizing prey. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Meet the Leading Expert on Political Leaders’ Health, and His ‘West Wing’ DoppelgängerCanary Islands Are Alternate Site for Planned Mauna Kea TelescopeTake a Number: A New Death Toll for SmokingQ&A: Eggs in the Refrigerated Section? Only in the U.S.Facebook Could Be Associated With a Longer Life, Study FindsNewfound Millipede Is Toothy, Poisonous and Quite Male