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Science & SocietyGender-affirming care improves mental health for transgender youth
Several state legislatures have taken steps to restrict access to gender-affirming health care for transgender adolescents. That goes against medical guidelines.
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AnimalsFemale hummingbirds may sport flashy feathers to avoid being harassed
Some female white-necked jacobin hummingbirds boast bright blue plumage that’s similar to males. The colors may help females blend in to avoid attacks.
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PhysicsPhysicists caught protons ‘surfing’ on shock waves
A laser experiment could help scientists understand how protons reach high energies traveling through the cosmos.
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PaleontologyThis big-headed pterosaur may have preferred walking over flying
The most intact fossil of a tapejarid pterosaur ever found yields new insight into how the ancient reptile lived.
By Nikk Ogasa -
AnthropologyAncient DNA shows the peopling of Southeast Asian islands was surprisingly complex
Ancient DNA from a hunter-gatherer skeleton points to earlier-than-expected human arrivals on Southeast Asian islands known as Wallacea.
By Bruce Bower -
Science & SocietyRacism lurks in names given to plants and animals. That’s starting to change
Racist legacies linger in everyday lingo for birds, bugs and more. Some scientists see the chance to change that.
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AnimalsFrog and toad pupils mainly come in seven different shapes
Analyzing over 3,200 species revealed that the colorful eyes of frogs and toads have pupils shaped as slits, diamonds, fans and more.
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Cosmology‘Flashes of Creation’ recounts the Big Bang theory’s origin story
In ‘Flashes of Creation,’ author Paul Halpern tells the story of George Gamow , Fred Hoyle and their decades-long sparring match about the Big Bang.
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AstronomyThe definition of planet is still a sore point – especially among Pluto fans
In the 15 years since Pluto lost its planet status, scientists have continued to use the definition that works for them.
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ClimateClimate change made Europe’s flash floods in July more likely
The deadly July floods in Belgium and Germany bear the fingerprints of human-caused climate change, scientists say.
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AnimalsA giant tortoise was caught stalking, killing and eating a baby bird
Video captures the first documented instance of a tortoise hunting another animal.
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AstronomyHere’s how cool a star can be and still achieve lasting success
The dividing line between successful stars and failed ones is a surface temperature of about 1,200° to 1,400° Celsius, a new study reports.
By Ken Croswell