Invisibility croak

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

Jenny Shelton from the Wildlife Trusts explains how to help these amazing amphibians

Mimicry is where one species evolves to look like another. Animals evolve to mimic others in two main ways and they can be classed as either ‘honest’ or ‘dishonest’ mimics. In honest mimicry, two or m

Yossi Yovel The Genius Bat Understanding our most mysterious mammal 336pp. Oneworld. £20. Philosophy begins with wonder, according to Plato and Aristotle. As for philosophy, so, and more so, for biolo

THINK OF SOUTH American fishes and we mostly think of species from the Amazon basin. Like all river basins, the Amazon has an edge, in this case, one of those edges is the Guiana Shield, a region rich

From her Yorkshire smallholding, Sally Coulthard marvels at the superpowers of crepuscular creatures that emerge in the magical half-light of dawn and dusk