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See the free collection of coronavirus papers and the Wellcome joint statement . Congratulations to the 2019 Cozzarelli Prize recipients! Click to read more. Volume 117, Issue 11: View articles in the latest issue of . Click here to view selections in the latest issue of . Latest in Ecology: Evaporative cooling demands and climate-driven species declines. Click to read more. Image courtesy of Sean Peterson (photographer). 1 2 3 4 Front Matter Inner Workings: The evolution of cell types and the roots of animal diversity Technical advances have given rise to a different way of looking at the evolution of cells: perhaps cell types are evolutionary units in their own right, with their own phylogeny. Image credit: Pawel Burkhardt (University of Bergen, Bergen, Norway). Core Concept: Liquid metal renaissance points to wearables, soft robots, and new materials Once confined mostly to mercury, knowledge of liquid metals and their unique properties is now offering up myriad applications. Image credit: Minyung Song (North Carolina State University, Raleigh, NC). Journal club: Judging others based on the rewards they receive correlates with political leanings All Front Matter In the News Forest responses to climate change A study explores the competing effects of atmospheric carbon and temperature on forests. Image credit: Martin D. Venturas. Honeybees’ hydrofoiling locomotion Honeybees use their wings as hydrofoils to maneuver on the water surface, potentially inspiring the design of aerial–aquatic hybrid vehicles. Image credit: Chris Roh. Extraterrestrial biologically important sugars Researchers report the presence of ribose and other sugars in meteorites, and the arrival of such sugars on Earth may have given rise to early biopolymers. Image credit: Yoshihiro Furukawa. All News Current Issue Submit Sign up for Article Alerts Sign up Science Sessions Podcasts Albatross patrol Henri Weimerskirch describes how albatrosses can help detect illegal fishing boats. Listen Past Podcasts Subscribe Featured Profile Featured Profile Profile of NAS member and ecologist Susan P. Harrison Image courtesy of Michael J. McRae (photographer). Latest Articles The impact of long-range dispersal on gene surfing Mar 20, 2020 Loss of insulin signaling may contribute to atrial fibrillation and atrial electrical remodeling in type 1 diabetes Mar 20, 2020 Could confounding the allosteric communication of biotic machinery be an alternative path to antibiotics? Mar 20, 2020 Molecular dissection of pheromone selectivity in the competence signaling system ComRS of streptococci Mar 20, 2020 Coronavirus endoribonuclease targets viral polyuridine sequences to evade activating host sensors Mar 20, 2020 View more published ahead of print articles Most Read Most Cited A scalable pipeline for designing reconfigurable organisms Social tipping dynamics for stabilizing Earth’s climate by 2050 Lifetimes of interstellar dust from cosmic ray exposure ages of presolar silicon carbide Prophylactic and therapeutic remdesivir (GS-5734) treatment in the rhesus macaque model of MERS-CoV infection Universals and variations in moral decisions made in 42 countries by 70,000 participants More... 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