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:Ryan Zinke, Trump’s Interior Secretary, Faces Increased Ethics ScrutinyStudies Warn Against Minimally Invasive Surgery for Cervical CancerA Guide to the Ryan Zinke InvestigationsOnce Paralyzed, Three Men Take Steps Again With Spinal ImplantTrilobites: The Great Speckled Dinosaur EggTaking the Oceans’ Temperature, Scientists Find Unexpected Heat