Find out why males tend to be showier and females choosier. Take an animated tour of the differences in how male and female birds invest their energy—from producing sperm and eggs to tending the nest.

You’ll get an evolutionary perspective on why the fanciest males contribute nothing but sperm to the next generation.

Launch the immersive Fancy Males & Choosy Females Interactive Feature section.

Launch Fancy Males & Choosy Females

Discussion