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AnalysisBlue whales have gone missing off the Galápagos. Scientists think El Niño could be why.Blue whale sightings have fallen off dramatically near the Galápagos. El Niño may be to blame.
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AnalysisCould AI ever build itself? Scientists map the road to the 'last AI built by humans.'Researchers hope recursive self-improvement could tackle the skyrocketing costs of developing advanced AI models. But is it viable?
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AnalysisColorectal cancer cases in kids have risen sixfold over past 2 decades — researchers are racing to understand whyWhile rare, colorectal cancer is becoming more common in kids, teens and young adults, and the disease appears particularly aggressive in this age group.
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AnalysisChristina Applegate misdiagnosis: Why can MS be difficult to diagnose?MS advocate Christina Applegate recently announced that her MS diagnosis was incorrect, based on new test results. Why can the disease be difficult to identify?
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AnalysisScientists can now 'watermark' AI-generated proteins to deter bioweapon creation. But will it really work?A new technology encodes an invisible mark into the structure of AI-generated proteins, but experts said the system's guardrails can still be bypassed.
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Health'There's no reason to ban us from playing': Analysis debunks notion that transgender women have inherent physical advantages in sportsA meta-analysis of 52 studies that included over 5,000 transgender people suggests that transgender women's physical fitness after hormone therapy is comparable to that of cisgender women.
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Planet EarthEarth is 'missing' lighter elements. They may be hiding in its solid inner core.These chemical oddities may explain why Earth seems to be deficient in certain elements — and could prove useful in catalysts and more.
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Planet EarthThousands of dams in the US are old, damaged and unable to cope with extreme weather. How bad is it?Dams in the U.S. are showing signs of damage that are worsening with age and climate change. Could satellites help prioritize repairs amid budget and inspection constraints?
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Primates'Part of the evolutionary fabric of our societies': Same-sex sexual behavior in primates may be a survival strategy, study findsA new study comparing 59 species of primates linked same-sex sexual behavior to scarce resources and more predators in socially complex species. The findings show diverse sexual behaviors are common — and likely beneficial in primates.
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Artificial IntelligenceAI can develop 'personality' spontaneously with minimal prompting, research shows. What does that mean for how we use it?When large language models (LLMs) are allowed to interact without any preset goals, scientists found distinct personalities emerged by themselves.
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HealthLab mice that 'touch grass' are less anxious — and that highlights a big problem in rodent researchMice that experience the real world may be better models for human mental health conditions, compared with lab mice that never leave their cages, a study hints.
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Opinion'The scientific cost would be severe': A Trump Greenland takeover would put climate research at riskTrump's calls for a takeover of Greenland puts open scientific collaboration that is helping our understanding of the threat of global sea-level rise at risk.
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Planet EarthForced closure of premier US weather-modeling institute could endanger millions of AmericansFrom high-wind forecasts and wildfire behavior to floods, aviation hazards, air quality and space weather, science developed at the National Center for Atmospheric Research informs decisions that aim to reduce risk.
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GeneticsThese genes were thought to lead to blindness 100% of the time. They don't.New research finds that retinal diseases thought to map one-to-one to genetic mutations are more complicated than that.
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