Birds that blush: scientists document macaw mystery

/ Aug 23, 2018

Birds that blush: scientists document macaw mystery

Have you ever heard of macaws that blush? Researchers still don't quite understand how it works, but a French team has observed the phenomenon multiple times in a group of five captive blue-and-yellow macaws (Ara ararauna). They published their findings Wednesday in the journal PLOS One. Blue-and-yellow ...

/ Jun 29, 2018

Crows 'reverse engineer' tools from memory: study

New Caledonian crows use mental pictures to twist twigs into hooks and make other tools, according to a provocative study that suggests the notoriously clever birds pass on successful designs to future generations, a hallmark of culture. "We find evidence for a specific type of ...

Happiness makes hit songs: study

May 17, 2018

Happiness makes hit songs: study

Hit songs today are "happier," more danceable and more likely to be sung by women than songs that fail to make it to the charts, a study into 30 years of musical evolution revealed Wednesday. But also it noted a somber trend: while people clearly ...

/ May 17, 2018

Study links body clock to mood disorders

Messing with the natural rhythm of one's internal clock may boost the risk of developing mood problems ranging from garden-variety loneliness to severe depression and bipolar disorder, researchers said Wednesday. The largest study of its kind, involving more than 91,000 people, also linked interference with ...

/ Apr 27, 2018

Study triples number of known depression genes

A study of nearly half a million people has uncovered 30 new genes linked to depression, tripling the number known to play a role in the debilitating disease. The same enlarged basket of depression genes also underpins other psychiatric disorders, such as schizophrenia, a consortium ...