Upper-Intermediate to Advanced
.... flock together.
You know about my predilection for corvids, of all sizes and types. They are also a favourite subject for scientists and observers which yields a regular supply of interesting discoveries about their nature and behaviour. A recent study tells us about juvenile crows living in gangs ("gangsters"?) and the stress they suffer as a consequence of this:
If we should apply the results of this study to human behaviour, it might explain why we, after spending some years rambling in gangs of loud juvenile peers ("los colegas") suddenly develop a mysterious tendency to mate and spend the rest of our time in pairs (usually one pair at a time, otherwise it becomes stressful again).
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| Photo by David Cook |
And what about fluid mechanics again? This time it's not cats, but rooks, who seem to have a better grasp at Archimedes Principle than the average E.S.O. student in this country, just watch this video to see for yourself:
http://news.bbc.co.uk/2/hi/science/nature/8181233.stm
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Photo by D. Gordon E. Robertson |
The Raven, by E.A. Poe.