Wednesday, August 20, 2008

Mirror test shows magpies aren't so bird-brained

Some argue that convergent evolution is suggestive that evolution is not as random as people think. Here we see a case of convergence with respect to self-recognition.

"Self-recognition, once thought to be an ability enjoyed only by select primates, has now been demonstrated in a bird..."

"The authors suggest that self-recognition in birds and mammals may be a case of convergent evolution, where similar evolutionary pressures result in similar behaviours or traits, although they arrive at them via different routes."