Some bigger-bodied birds aim to attract females by breaking out the bass. ->
Variety is the spice of life and animals know it pays to be flexible.
Female butterflies aren't interested in extra attention once they're pregnant.
Timing is everything - with climate change mammals may have a harder time adjusting their clocks.
The love bug for fruit flies may be their intestinal bacteria.
A small percentage of neanderthal genes provided a significant boost to human health.
Size is a determining factor for skink species.