The Gene that Makes Female Birds Drab
The Gene that Makes Female Birds Drab
In some finch species, the difference between colorful males and muted females comes down to one gene, BCO2, which encodes an enzyme that degrades carotenoids.
The Gene that Makes Female Birds Drab
The Gene that Makes Female Birds Drab

In some finch species, the difference between colorful males and muted females comes down to one gene, BCO2, which encodes an enzyme that degrades carotenoids.

In some finch species, the difference between colorful males and muted females comes down to one gene, BCO2, which encodes an enzyme that degrades carotenoids.

house finch
Image of the Day: Red-Feathered Finches
Image of the Day: Red-Feathered Finches
Emily Makowski | Sep 30, 2019
Scientists uncover a potential reason why redder house finches have better health.