We know the ladies prefer bright colours, but do we know why?
Recent research may be beginning to solve the unanswered question: females birds select mates from a variety of visual cues, but why exactly do they do it?
Previous theories include that brighter colours and better songs indicate better health, or better quality. But this recent study suggests that rather than indicated superior genes, these visual cues may indicate males with a shared mitochondrial background.
And if a male’s genes are compatible with a female’s mitochondrial DNA, their offspring will be healthier.
And how have these cues evolved? It’s likely that they are related to energy production and energy efficiency.
You can read the paper here.
Photo Credit: Gavin Emmons | Flickr