Moths fly 1000 kilometres with Earth's magnetic field as a guide

时间:2019-03-03 09:02:02166网络整理admin

By Michael Marshall AN AUSTRALIAN moth uses Earth’s magnetic field to find its way across the continent. While other insects have been shown to navigate using this field, the moth is the first to have been discovered doing so over long distances and at night. Like the famous monarch butterflies in the Americas, Bogong moths (Agrotis infusa) make an epic migration. In spring, about 2 billion leave their breeding grounds on the dry, flat plains of south-east Australia and fly more than 1000 kilometres to a set of 50 caves high in the Australian Alps. In autumn,