tags: blue tit, Cyanistes caeruleus, extrapair fertilization, genetic benefit hypothesis, genetic similarity, plumage color, birdsong, ornithology, behavioral ecology
Blue tit, Cyanistes caeruleus.
Image: Paul Hillion, 26 April 2008.
Even though most bird species form social bonds with their mates, they are not always faithful partners to each other. It's easy to figure out why male birds engage in extrapair copulations: this increases the total number of their offspring -- and this increases their reproductive fitness. But since female birds are physically capable of producing only…
genetic similarity
grrlscientist | September 20, 2008tags: political views, politics, physiology, threat response, psychology, philosophyfight or flight, nature versus nurture
Most Americans have been actively engaged in the frustrating sport of arguing about politics, which often leads to the common refrain; "You just don't get it!" So this made me wonder why people who seem to have similar life experiences can end up with such dramatically different personal philosophies -- philosophies that ultimately affect their political views and voting behavior. Apparently, I am not the only one to wonder about such things, because a paper was just…