Another Life: What do birds dream about?

A study of zebra finches found them practising their songs. Other birds need to stay more alert, so only one side of their brain goes to sleep at a time






YOU MAY ALSO LIKE...

The Irish Times ePaper

Stardust

Inquests into the nightclub fire that led to the deaths of 48 people

Common Ground

How does a post-Brexit world shape the identity and relationship of these islands