Les guerres modifient-elles la migration des ...

La Terre tourne sur elle-même, mais cette rotation ralentit progressivement. Environ 1,4 millisecondes s’ajoutent à la durée d’une journée tous les 100 ans. Bien que ce ralentissement soit imperceptible au quotidien, ses conséquences, sur le long terme, sont significatives pou ...

L’idée selon laquelle les escaliers médiévaux tournent principalement dans le sens horaire pour des raisons défensives est un mythe persistant. Selon cette théorie, cette orientation avantageait les défenseurs, souvent droitiers, leur permettant d’avoir une meilleure amplitude ...

The threat to wildlife from invasive species is now one of the greatest across the world and it is growing. Killer shrimp are the latest non-native species to be found in a formerly quiet and respectable area of Cambridgeshire. In the UK we have endlessly debated the problem of t ...  Afficher plus

The moment scientists had been dreading arrived late last year, when H5N1, or bird flu, was found for the first time in the Antarctic. Last week a king penguin on the island of South Georgia became the first in the region to be suspected to have died from the disease. The Guardia ...  Afficher plus

Cyprus is one of the main resting stops for songbirds as they migrate between Europe, Africa and the Middle East. For centuries, Cypriots trapped and ate a small number of migrating songbirds, as part of a subsistence diet. But over recent decades, the consumption of songbirds be ...  Afficher plus

Fear that the highly infectious variant of avian influenza, H5N1, would reach the Antarctic region and put isolated bird populations at risk has finally come to fruition as the first birds on Bird Island in the Atlantic Ocean have come down with the devastating illness. Science m ...  Afficher plus