Earth day is Friday, April 22nd, and Proof is celebrating all week. This is the first post in a five-day series about our planet. Look closely at the Atlas moth above and you’ll see that one of ...

The world's largest butterfly survey, The Big Butterfly Count, starts today, with thousands of people counting the UK's butterflies. We've been taking a look at some of the world's most beautiful ...

The designs of butterfly and moth wings are beautiful — and even more interesting are the stories behind them.

The most beautiful butterfly bagged over 247,000 votes from among 3.7 million online ballots ... the yellow of the dorsal hind wings is modified by bright blue-green iridescence which is ...