Two new poisonous birds discovered

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

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

The best rare birds seen all around Britain in 2025

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

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

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