Although carrion crows and hooded crows are almost indistinguishable genetically, they avoid mating with each other. LMU researchers have now identified a mutation that appears to contribute to this instance of reproductive ...
Plants & Animals
Jul 14, 2020
0
19
Humans are unusual, even among primates, in the length of our "extended childhood." Scientists think that this period of childhood and adolescence, which gives us lots of time to explore, create, and learn, is a key reason ...
Plants & Animals
Jun 1, 2020
4
1023
Crows can voluntarily control the release and onset of their calls, suggesting that songbird vocalizations are under cognitive control, according to a study published August 27 in the open-access journal PLOS Biology by Katharina ...
Plants & Animals
Aug 27, 2019
0
1476
Carrion crows and hooded crows are almost indistinguishable genetically, and hybrid offspring are fertile. Ludwig-Maximilians-Universitaet (LMU) in Munich biologists now show that the two forms have remained distinct largely ...
Plants & Animals
Mar 27, 2019
1
66
Like master artisans selecting the finest raw materials for their showpiece designs, New Caledonian crows identify the best plants for fashioning hunting hooks from among myriad shrubs in the forest undergrowth, researchers ...
Plants & Animals
Feb 6, 2019
0
185
An international team of scientists from the Max Planck Institute for Ornithology and the University of Oxford has revealed that New Caledonian crows are able to create tools by combining two or more otherwise non-functional ...
Plants & Animals
Oct 24, 2018
0
7330
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 ...
Plants & Animals
Jun 28, 2018
0
1238
Biologists at the Universities of St Andrews and Edinburgh have discovered why some crows 'craft' elaborate hooked tools out of branched twigs.
Plants & Animals
Jan 22, 2018
0
92
Biologists at the University of St Andrews have discovered how New Caledonian crows make one of their most sophisticated tool designs - sticks with a neatly-shaped hooked tip.
Plants & Animals
Dec 7, 2017
0
256
What are crows saying when their loud cawing fills a dark winter's evening? Despite the inescapable ruckus, nobody knows for sure. Birds congregate daily before and after sleep, and they make some noise, but what might be ...
Plants & Animals
Dec 5, 2017
1
633
