Sexual selection in grasshoppers encompasses a suite of behavioural, morphological and genetic traits that influence mating success and drive divergence among populations. Male grasshoppers employ ...

The process of reproductive isolation in house mice (Mus musculus) hinges on genetic incompatibilities that arise during divergence of subspecies. In natural hybrid zones between M. m. musculus and M.

Hendry's team observed that male river sockeyes are slimmer than their lake counterparts (to better deal with the river's strong current), while the female river sockeye are larger than their beach ...