How two butterfly species have evolved exactly the same striking wing color and pattern has intrigued biologists since Darwin's day. Now, scientists have found "hot spots" in the butterflies' genes ...

Researchers have created a hybrid butterfly whose genes and color are blends of two other species. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content.

Researchers have discovered two new to science species of butterflies in eastern USA. Being superficially similar to one very common butterfly species, they are remarkably different in the shape of ...

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The First Church of Christ, Scientist, and we’ve always been transparent about that. The church publishes the ...

A new butterfly species that lives high in the Sierra Nevada mountains of the western US has turned out to be a rare creature indeed: it arose through the merging of two distinct species. It is ...