Writing the summary…
Humans may not be as hardwired for violence as we thought
Source: Science Daily
Original reporting
Science Daily: read the full reportRelated stories
BBC Science
Puffin island on cusp of closure as it runs out of water
Lundy is in "real jeopardy" and could be evacuated if supplies run out, bosses say.
BBC Science
Tests carried out on seabirds after nurdle spill
Necropsies are being carried out on seabirds to find out the effects of microplastic pollutants.
Science Daily
A new way to fight gum disease without wiping out good bacteria
Scientists discovered that disrupting the chemical messages bacteria use to communicate can push dental plaque toward a healthier microbial balance. The approach could lead to new treatments for gum disease that control harmful bacteria without destroying beneficial species.
Science Daily
Animals may have evolved 200 million years earlier than we thought
New research suggests animals could have evolved as early as 800 to 700 million years ago, roughly 200 million years earlier than some previous estimates. If so, the first animals may have lived before or during Snowball Earth, leaving behind little trace because their soft bodies were rarely preserved.
Science Daily
What happens in the brain when cannabis makes you anxious?
Cannabinoids may intensify anxiety by removing a natural brake on specific neurons in the brain’s fear center, particularly during stressful situations. In mice, shutting down those neurons sharply reduced cannabinoid-related anxious behavior.
NPR Health
'Medicare for All' message attracts midterm voters buckling under medical bills
Midterm candidates are talking about Medicare for All, and two out of three Americans tell pollsters they support it. It speaks to the desire for radical change, though many don't really know what it is.