Research roundup: 7 cool science stories we almost missed

Animal Behavior, 2026. DOI: 10.1016/j.anbehav.2026.123491 (About DOIs). Human sperm gets lost in space Credit: Sperm and Embryo Biology Laboratory, Adelaide Universit Credit: Sperm and Embryo Biology Laboratory, Adelaide Universit When thoughts turn to the future of space exploration, particularly the potential for extended trips in microgravity, one can’t help but wonder how humans might breed…

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Pee changes how some mushrooms ‘talk’

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. Mushrooms are social butterflies. Seemingly small communities of fungi separated by hundreds of feet are frequently connected via vast underground webs known as mycelial networks. While these allow the fungi to share vital information about their surroundings and environmental…

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