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 ...

In 2012, there were only about four Schaus swallowtail butterflies left in their natural habitat of Southeast Florida and the Florida Keys. Through conservation efforts, captive breeding and rearing ...

The butterfly shown has a completely unique pattern of colors because of a special trait — it has two different sexes. It looks like it was two butterflies cut down the middle and sewn together: One ...

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 one of ...

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 ...

Walk through the rainforests of Ecuador and you might encounter a beautiful butterfly called Heliconius cydno. It's extremely varied in its colours. Even among one subspecies, H.cydno alithea, you can ...

NUS scientists show that two of Singapore's threatened butterfly species are now critically dependent on a non-native caterpillar host plant, the Dutchman's pipe (Aristolochia acuminata) that is ...