Your letters.

Sonification is great and has been around for years 31 December 2022, p 46 From Susan Fowler, New York, US My colleague Alice Preston and I were delighted by your article on sonification of astronomical data. Editor's pick Give animal feelings the benefit of the doubt 14 January, p 27 From Richard Brown, Huntly, Aberdeenshire, UK When I qualified as a vet in 1981, I would have agreed with Marlene Zuk that we should question the trend of attributing human-like motivations and feelings to animals, such as bees "playing" with objects. Warm connections at risk in the internet age 14 January, p 46 From Denis Watkins, St Just in Roseland, Cornwall, UK In "How to be happy", Robert Waldinger says we evolved to be social animals and that "having warm connections with other people predicts how long you stay healthy". [Extracted from the article]