ScienceDaily: Top Environment News


Marine heatwaves could wipe out an extra six per cent of a country’s fish catches, costing millions their jobs

Posted: 01 Oct 2021 12:27 PM PDT

Extremely hot years will wipe out hundreds of thousands of tons of fish available for catch in a country's waters in this century, on top of projected decreases to fish stocks from long-term climate change, a new study predicts. Modelling a worst-case scenario where no action is taken to mitigate greenhouse gas emissions they projected a six per cent drop in the amount of potential catches per year and 77 per cent of exploited species are projected to decrease in biomass, or the amount of fish by weight in a given area, due to extremely hot years. These decreases are on top of those projected due to long-term decadal-scale climate change. The study highlights the need to develop ways to deal with marine temperature extremes, and soon, the researchers say.

Revealing the logic of the body’s ‘second brain’

Posted: 01 Oct 2021 10:02 AM PDT

Researchers have made a surprising discovery about the human gut's enteric nervous system that itself is filled with surprising facts. For starters, there's the fact that this 'second brain' exists at all.

‘Fight or flight’ – unless internal clocks are disrupted, study in mice shows

Posted: 01 Oct 2021 05:26 AM PDT

Daily release of hormones depends on the coordinated activity of clocks in two parts of the brain, a finding that could have implications for human diseases.

Toothy grins from the past: Ancient birds replaced their teeth like living crocodilians

Posted: 30 Sep 2021 11:07 AM PDT

The first 3D reconstructions of extinct Cretaceous birds reveal a reptilian tooth replacement pattern.