Â鶹´«Ã½

Letter: First class post

Published 27 July 2016

As an undergraduate 40 years ago I found the same with pigeons: nobody would believe my data
Susan Finsen in the report of ducklings recognising abstractions (23 July, p 15)

Issue no. 3084 published 30 July 2016

Â鶹´«Ã½ issue 3084 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 Â鶹´«Ã½ events and special offers.

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