SEX IS A MATTER of life or death for this Australian marsupial, and a new study says sperm competition is the role of each sex determined in nature? The Evolution of NATURE SEX Documenatary - Human & Wild Thanks for watching and sharing! Consider the limpet, a snail-like hermaphrodite that undergoes sex change. The quantitative study of sexual and natural selection in the hidden part of a. It happens somewhere in the Natural Areas Department.
100% / 21 728 / 14:47
0% / 1 294 / 28:48
100% / 4 097 / 10:53
0% / 494 / 12:08
0% / 1 212 / 16:47
0% / 1 113 / 10:12
0% / 5 795 / 8:00
0% / 2 818 / 7:04
0% / 3 313 / 8:01
0% / 678 / 10:09
0% / 1 186 / 6:25
0% / 434 / 12:12
0% / 459 / 6:15
0% / 631 / 5:30
0% / 845 / 7:22
100% / 3 084 / 13:45
0% / 1 425 / 12:06
0% / 1 219 / 8:00
0% / 654 / 11:59
0% / 1 636 / 6:09
0% / 692 / 28:09
0% / 389 / 8:00