The various ways vertebrates breathe

I’m Dr Alexander Krajete, and I help make ...

How to admire and protect our wonderful waterways in the UK

In high summer, which species will cope best with the conditions, and which should we perhaps avoid fishing for?

We think of evolution as a slow, gradual process, but that’s not always the case. Some species undergo a rapid transformation

Britain’s wild places are under pressure – but cycling gives us rare access to their beauty and fragility. Sophie Pavelle explores what’s at stake from the saddle

With high summer beckoning, John Lewis-Stempel reflects on the incomparable richness of pond life and the rewards of pausing to peer into the murky depths on a warm June afternoon