Earth

Ecosystems

Seagrasses boost ecosystem health by fighting bad bacteria

Seagrasses might reduce bacteria levels in ocean water.

Physics

Sound waves could take a tsunami down a few notches

A tsunami’s ferocious force could be taken down a few notches with a pair of counter waves.

Climate

Desert songbirds increasingly at risk of dehydration

With no efforts to curb climate warming, hot spots in the U.S. Southwest could turn uninhabitable for some songbirds.

Oceans

Fleeting dead zones can muck with seafloor life for decades

Low-oxygen conditions can fundamentally disrupt seafloor ecosystems and increase carbon burial, new research shows.

Earth

Dual magma plumes fueled volcanic eruptions during final days of dinosaurs

Two magma plumes fueled the Deccan volcanic eruptions around the time of the dinosaur extinction 66 million years ago.

Climate

Hot nests, not vanishing males, are bigger sea turtle threat

Climate change overheating sea turtle nestlings may be a greater danger than temperature-induced shifts in their sex ratios.

Earth

Oxygen flooded Earth’s atmosphere earlier than thought

The Great Oxidation Event that enabled the eventual evolution of complex life began 100 million years earlier than once thought, new dating of South African rock suggests.

Anthropology

DNA points to millennia of stability in East Asian hunter-fisher population

Ancient hunter-gatherers in East Asia are remarkably similar, genetically, to modern people living in the area. Unlike what happened in Western Europe, this region might not have seen waves of farmers take over.

Genetics

CRISPR used in cows to help fight tuberculosis

Chinese researchers used a CRISPR/Cas 9 gene editor to make cows more resistant to tuberculosis.

Genetics

CRISPR used in cows to help fight tuberculosis

Chinese researchers used a CRISPR/Cas 9 gene editor to make cows more resistant to tuberculosis.

Oceans

Cone snails wander in circles, lose focus with boosted CO₂

Deadly cone snails wander in circles and become less capable hunters when exposed to higher levels of carbon dioxide in seawater.

Oceans

Cone snails wander in circles, lose focus with boosted CO₂

Deadly cone snails wander in circles and become less capable hunters when exposed to higher levels of carbon dioxide in seawater.