When it comes to the biological imperatives of survival and reproduction, nature often finds a way—sometimes more than one way. For a species of flycatcher in the remote Solomon Islands, scientists have so far found at least two genetic pathways leading to the same physical outcome: all-black feathers. This change was no random accident. It was a result of nature specifically selecting for this trait.
Click here for original story, More than one way to build a black bird: The quirks of remote island evolution
Source: Phys.org