Endangered Hawaiian crow shows a knack for tool use

Sep 15, 2016

Endangered Hawaiian crow shows a knack for tool use

An endangered crow species from Hawaii that already is extinct in the wild displays remarkable proficiency in using small sticks and other objects to wrangle a meal, joining a small but elite group of animals that use tools. Scientists said on Wednesday that in ...

'Baby, it's hot outside': Why birds sing to eggs

Aug 19, 2016

'Baby, it's hot outside': Why birds sing to eggs

Much like parents who talk to a pregnant woman’s belly, some birds sing to their eggs before they hatch, and the reason may be to prepare them for a warming world, researchers said Thursday. The study in the journal Science examined a peculiar habit ...

Mammals thrived long before the dinosaurs died: teeth study

Jun 9, 2016

Mammals thrived long before the dinosaurs died: teeth study

The prevailing theory that mammals only flourished after an asteroid strike wiped out the dinosaurs 66 million years ago is doubly wrong, according to a study published Wednesday. Our warm-blooded predecessors thrived and spread over millions of years even as Tyrannosaurus and other flesh-ripping ...

How dogs became man's best friend — twice over

Jun 3, 2016

How dogs became man's best friend — twice over

Ancient humans made dogs their best friend not once but twice, by domesticating two separate populations of wolves far apart in Europe and Asia. Scientists on Thursday said present-day genomes reveal a deep internal split between dogs from opposite ends of the Eurasian continent. ...

May 20, 2016

Researchers solve mystery of red color in birds

Scientists said Thursday they have solved a long-standing mystery about what makes some birds red — a color that, when found in beaks and feathers, shows strong sex appeal. The genes affecting coloration belong to a wider family of genes involved in detoxification, said ...