91av

Letter: First class post

Published 26 April 2017

Must have more barnacle goose genes than is good for me
to the news that a barnacle goose trains for its 3000km migration by getting fat (22 April, p 35)

Issue no. 3123 published 29 April 2017

91av issue 3123 cover

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox. We'll also keep you up to date with 91av events and special offers.

Sign up
Piano Exit Overlay Banner Mobile Piano Exit Overlay Banner Desktop