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We summarize the week's scientific breakthroughs every Thursday.
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AnimalsGround beetle genitals have the genetic ability to get strange. They don’t
A new look at the genetics of sex organs finds underpinnings of conflicts over genital size.
By Susan Milius -
EcosystemsMoonlight shapes how some animals move, grow and even sing
The moon’s light influences lion prey behavior, dung beetle navigation, fish growth, mass migrations and birdsong.
By Erin Wayman -
Planetary ScienceReaders wanted to know about asteroids, lithium batteries and more
Readers had questions and comments about asteroids, lithium batteries, and pyroclastic flows.
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Health & MedicineBreaking down the science behind some of your favorite summer activities
Inject some science into your summer.
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AnthropologyAncient DNA reveals the origins of the Philistines
A mysterious Biblical-era population may have fled Bronze Age calamities.
By Bruce Bower -
EcosystemsWhy some insect eggs are spherical while others look like hot dogs
Analyzing a new database of insect eggs’ sizes and shapes suggests that where eggs are laid helps explain some of their diversity of forms.
By Yao-Hua Law -
Health & MedicineRogue immune cells can infiltrate old brains
Killer T cells get into older brains where they may make mischief, a study in mice and postmortem human brain tissue finds.
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NeuroscienceThis brain region may be why some robots send chills down your spine
Scientists may have traced the source of the “uncanny valley” sensation in the brain.
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Health & MedicineVision cells can pull double duty in the brain, detecting both color and shape
Neurons in a brain area that handles vision fire in response to more than one aspect of an object, countering earlier ideas, a study in monkeys finds.
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Plants‘Slime’ shows how algae have shaped our climate, evolution and daily lives
The new book ‘Slime’ makes the case that algae deserve to be celebrated.
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Health & MedicineIn mice, a high-fat diet cuts a ‘brake’ used to control appetite
A fatty diet changes the behavior of key appetite-regulating cells in a mouse brain.
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AnimalsSome ancient crocodiles may have chomped on plants instead of meat
Fossil teeth of extinct crocodyliforms suggest that some ate plants and that herbivory evolved at least three times in crocs of the Mesozoic Era.