science news 28.8.2019

Today's selection of science news. Links are normally to press releases on EurekAlert (at the bottom end I may also add a couple of newspaper stories). I include quotes from the summary in italics in cases where the title alone doesn't reveal what the story is about. My own thoughts appear without italics if I have any.


astrobiology

The dark side of extrasolar planets share surprisingly similar temperatures


ecology

How bees live with bacteria

Native approaches to fire management


behaviour

Crows consciously control their calls



Carrion Crow vocalizing
Credit: Tobias Machts


climate change

Arctic permafrost melting will aggravate the greenhouse effect


sustainable tech

Water harvester makes it easy to quench your thirst in the desert


humans

Seeing it both ways: Visual perspective in memory