To be fragrant or not: Why do some male hairstreak butterflies lack scent organs?
Wednesday, September 16, 2015 - 22:30
in Biology & Nature
Female butterflies generally choose among male suitors, but with hundreds of related species living in close proximity, how can they decide which are the right ones? A solution is that males have scent producing organs on their wings. Strangely, some lose theirs during evolution. Is this a disadvantage?