Researchers have discovered a rare songbird that is male on one side of its body, and female on the other.
It's being described as a "once in a lifetime" discovery.
The last time the Powdermill Nature Reserve at the Carnegie Museum of Natural History found another was 15 years ago, and it's only the fifth to be discovered out of the nearly 800,000 birds that the nature reserve has seen.
To read more on this story, click here: Scientists Have Found A Rare Half-Male, Half-Female Songbird
