Ecosystems
- 			 Ecosystems EcosystemsInvasive species are a growing global threat'The Aliens Among Us' describes how invasive species are colonizing — and disrupting — ecosystems worldwide. By Sid Perkins
- 			 Paleontology PaleontologyWhat male bias in the mammoth fossil record says about the animal’s social groupsMale woolly mammoths were more often caught in natural traps that preserved their remains, DNA evidence suggests. 
- 			 Animals AnimalsHere’s the real story on jellyfish taking over the worldIn 'Spineless,' a former marine scientist reconnects with the seas and science through her obsession with these enigmatic creatures. 
- 			 Life LifeHow bird feeders may be changing great tits’ beaksLonger beaks may be evolving in U.K. great tits because of the widespread use of bird feeders in the country. 
- 			 Animals AnimalsThis newfound hermit crab finds shelter in corals, not shellsA newly discovered hermit crab takes its cue from peanut worms and uses walking corals as a permanent shelter. 
- 			 Climate ClimateRising temperatures threaten heat-tolerant aardvarksAardvarks may get a roundabout hit from climate change — less food. By Susan Milius
- 			 Animals AnimalsInvasive earthworms may be taking a toll on sugar maplesSugar maple trees in the Upper Great Lakes region are more likely to have dying branches when there are signs of an earthworm invasion, a new study finds. 
- 			 Animals AnimalsWhy midsize animals are the fastestNew analysis delves into the mystery of why medium-sized animals are speedier than bigger ones. 
- 			 Animals AnimalsOne creature’s meal is another’s pain in the buttKelp and dolphin gulls in Patagonia have found a new food source. But they accidentally injure fur seal pups to get it. 
- 			 Animals AnimalsWhales feast when hatcheries release salmonWhales: “They’re 40 feet long and they’re feeding on fish that are the size of my finger.” By Susan Milius
- 			 Plants PlantsHow to eavesdrop on kelpSounds reverberating through a kelp bed can be linked to environmental factors, suggesting a low-key way to monitor undersea communities. 
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