22 julio 2014
Mixed genes appear to drive hybrid birds to select more difficult routes than their parent species, according to new research. «Instead of taking well-trodden paths through fertile areas, these birds choose to scale mountains and cross deserts,» says one of the researchers.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jG_z4O_XAOo/140722102245.htm
