Giant marine mammals can produce enormous quantities of waste. But much of it is consumed by ocean creatures, playing a vital part in marine food webs.
Here are the stories behind the most amazing images in the world of science this week. A recap of the coolest photos featured on Live Science.
livescience.com: Amazing Images: The Best Science Photos of the Week
Film director Ridley Scott, who delights in terrifying moviegoers with his cinematic blend of horror and science fiction, suggested in a recent interview that the scary prospect of belligerent invading aliens might transcend the realm of sci-fi. According to Scott, hundreds of alien species are “out there” on distant worlds, and Earth’s inhabitants should prepare for the worst if they ever decide to visit our planet.
Mount Etna is the largest active volcano in Europe. Here are stunning photos of the erupting volcano.