Clouds of noxious gas, stink bombs and purple smokescreens may sound like schoolboy pranks, but the animal world is just as capable of executing arresting chemical warfare, says Deborah Nicholls-Lee

Amazing answers to your curious questions

A Russia of trees and liberty and peace: ...

Adrian Thomas looks to the skies for three special birds that you may see over your garden or might even attract into your space to breed

Bringing you some of the gardening news highlights

An ecosystem evolves across thousands of years, a biological interaction that is both intricate and fragile. The arrival of a new species can disrupt the balance, as we have seen in Britain with grey