Descent of Man and Selection in Relation to Sex, Part 2, The by Charles Darwin (1809 - 1882)

X - Secondary Sexual Characters of Insects Part 1

X - Secondary Sexual Characters of Insects Part 2

این قسمت را گوش کنید X - Secondary Sexual Characters of Insects Part 1 از  Descent of Man and Selection in Relation to Sex, Part 2, The by Charles Darwin (1809 - 1882) در CastVibes

VIII - Principles of Sexual Selection Part 1

VIII - Principles of Sexual Selection Part 5

VIII - Principles of Sexual Selection Part 6

VIII - Principles of Sexual Selection Part 4

VIII - Principles of Sexual Selection Part 3

IX - Secondary Sexual Characters in the Lower Classes of the Animal Kingdom

VIII - Principles of Sexual Selection Part 2