vrijdag 26 juli 2013

Pigeons Fly Home With a Map in Their Heads

It is a fascinating phenomenon that homing pigeons always find their way home. A doctoral student in biology at the University of Zurich has now carried out experiments proving that pigeons have a spatial map and thus possess cognitive capabilities. In unknown territories, they recognize where they are in relation to their loft and are able to choose their targets themselves.

Lees meer: ScienceDaily

dinsdag 16 juli 2013

Birds Outpace Climate Change to Avoid Extinction

A new study has shed light on the potential of birds to survive in the face of climate change. In the analysis, based on more than fifty years' detailed study of a population of great tits near Oxford, UK, a team of scientists were able to make predictions about how the birds could cope with a changing climate in the future. They found that for small, short-lived birds like the great tit, evolution can work fast enough for genetic adaptation to keep pace with a changing environment. However, even for such fast-evolving species, evolution on its own is not enough.
  
Lees meer: ScienceDaily