Every night under cover of darkness an advancing wall of toads heads west. Rather than winding through the bush, the toads march straight down the highway, ignoring the official border signs.
Meanwhile…
Do cane toads add something new to 'natural selection'?
manda/Flickr
Some 150 years ago, Charles Darwin proposed a mechanism for evolutionary change; but is there something beyond natural selection driving evolution?
My colleagues and I think so, and we believe it has…
