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Helen Pilcher
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
SNAKE EYES Dr Bryan Fry (left) with Will ...
Echidnas are spiky and slow-moving mammals that have long or short snouts known as beaks. They’re also called spiny anteaters because they lack teeth and rely on their long, sticky tongues to catch in
Amazing answers to your curious questions
Much of Angola’s wildlife was lost to civil war; now, thanks to years of dedicated conservation efforts, the country and its parks are on their way to becoming Africa’s newest safari star, writes Ian Packham