Biologists have discovered why some crows 'craft' elaborate hooked tools out of branched twigs.
While the number of fish in our oceans continues to decrease, changing environmental conditions seem to favour jellyfish. They occur more often in large blooms. So far, they are considered annoying, if not dangerous. The project GoJelly aims to change that perception and to investigate the suitability of the organisms as microplastic filters, fertilizers or fish feed.
Researchers have found that female cats are much more likely to use their right paw than males.