Animals
- 			 Animals AnimalsDawn Sneaks: Old birds sing early, cuckold sleepyheadsAmong European birds called blue tits, older males join the springtime dawn chorus extra early—which may signal their charms to philandering females. By Susan Milius
- 			 Animals AnimalsFishy Reputations: Undersea watchers choose helpers that do good jobsCoral reef fish use smart-shopper techniques of looking for satisfied customers before choosing a small fish to provide cleaning services. By Susan Milius
- 			 Animals AnimalsNaked and NotThe Damaraland mole rat may be less famous than its naked cousin, but both have some of the oddest social structures found in a mammal. By Susan Milius
- 			 Animals AnimalsMixed Butterflies: Tropical species joins ranks of rare hybridsA South American butterfly is one of the few animal species that seems to have arisen via the supposedly rare path of crossing two older species. By Susan Milius
- 			 Animals AnimalsLeggiest Animal: Champ millipede located after 79-year gapA millipede species that can grow up to 750 legs has turned up in California after decades with no sightings. By Susan Milius
- 			 Animals AnimalsWalking on Water: Tree frog’s foot uses dual method to stickThe tree frog can cling to both wet and dry terrains, despite its permanently lubricated foot. By Eric Jaffe
- 			 Animals AnimalsLobster Hygiene: Healthy animals quick to spot another’s illsCaribbean spiny lobsters will avoid sharing a den with another lobster that's coming down with a viral disease. By Susan Milius
- 			 Animals AnimalsTrue-pal lizards may show odd geneColorful lizards in California may offer an example of a long-sought evolutionary factor called greenbeard genes, a possible explanation for altruism. By Susan Milius
- 			 Animals AnimalsJay Watch: Birds get sneakier when spies lurkA scrub jay storing food takes note of any other jay that watches it and later defends the hoard accordingly. By Susan Milius
- 			 Animals AnimalsMonkey Business: Specimen of new species shakes up family treeThe new monkey species found in Tanzania last year may be unusual enough to need a new genus, the first one created for monkeys in nearly 80 years. By Susan Milius
- 			 Animals AnimalsNo Early Birds: Migrators can’t catch advancing caterpillarsPied flycatcher numbers are dwindling in places where climate change has knocked the birds' migration out of sync with the food-supply peak on their breeding grounds. By Susan Milius
- 			 Animals AnimalsJust turn your back, MomA female in a species of legless amphibians called caecilians nourishes her youngsters by letting them eat the skin off her back. By Susan Milius