Why are there so many species of beetles and so few crocodiles?

There are more than 400,000 species of beetles and only two species of the tuatara, a reptile cousin of snakes and lizards that lives in New Zealand. Crocodiles and alligators, while nearly 250 million years old, have diversified ...

Where the UK's wasps have gone and why they need your help

I get twitchy about taking holidays at the end of August, because it's the only time of year when people (and the media) in the UK seem to want to talk about wasps and I have spent my career trying to change people's minds ...

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