EvolutionScienceBiologists Unlock the Secrets of ‘Invisible’ AnimalsBy Luna ShyrScienceRichard Lewontin's Legacy of Fighting Racism in ScienceBy Grace HuckinsScienceAnimals Can Count. How Far Does Their Number Sense Go?By Jordana CepelewiczScienceDogs, Unlike Wolves, Are Born to Communicate With PeopleBy Grace HuckinsScienceDNA Has Four Bases. Some Viruses Swap in a FifthBy Jordana CepelewiczEnvironmentThe Coelacanth May Live for a Century. That’s Not Great NewsBy Max G. LevyScienceThe Sneaky, Lying Flower That Pretends to Be a Rotting BeetleBy Max G. LevyScienceSleep Evolved Before Brains. Hydras Are Living ProofBy Veronique GreenwoodScienceThis Evolutionary Gift May Protect Coral From Climate ChangeBy Sara HarrisonScienceWe Hiked Along With Cicada Biologists So You Don’t Have ToBy Eric NiilerScienceThe Secret Role Histones Played in Complex Cell EvolutionBy Viviane CallierScienceHow One Naughty Bird Cheats With Fancy Feather StructuresBy Matt SimonScienceWhat Octopus Dreams Tell Us About the Evolution of SleepBy Sara HarrisonScienceThe Dinosaur-Killing Asteroid Birthed Today's RainforestsBy Doug Johnson, Ars TechnicaScienceCells Form Into Living ‘Xenobots’ on Their OwnBy Philip BallScienceAncient Rocks Reveal When Earth's Plate Tectonics BeganBy Howard LeeScienceHow Far Should Humans Go to Help Species Adapt?By Elizabeth KolbertScienceThe US Has a Covid 'Scariants' Problem. Here's How to Fix ItBy Megan MolteniScienceMillion-Year-Old DNA Rewrites Mammoths' Evolutionary Tree By John Timmer, Ars TechnicaScienceIs This a Fossilized Lair of the Dreaded Bobbit Worm?By Matt SimonScienceA Newfound Source of Cellular Order in the Chemistry of LifeBy Viviane CallierScienceWhy Are Plants Green? The Answer Might Work on Any PlanetBy Rodrigo Pérez OrtegaScienceThis Fish Deleted Its Immune System to Fuse With Its MateBy Eric NiilerIdeasKeeping Up With the Coronas—or Why the Virus Is WinningBy KC ColeMore Stories