The following is a clip from Cosmos, where the late Dr. Carl Sagan speaks about 4 billion years of evolution. In the background simple animations morph from one species to another illustrating the point.
Sagan on Evolution – YouTube]
Are 2D:4D Finger-Length Ratios Related to Sexual Orientation or Sexual Inclination?
I had heard what I considered to be an urban legend that the ratio of a woman’s index to ring finger indicates whether women are likely to engage in casual sex and the sexual orientation of men. Turns out the research has been done and maybe it’s not an urban legend after all. Oh and for those of you wondering, my ring finger is about 10mm longer than my index finger — could possibly explains why I’m such a fast sprinter.