Ifa female had only one mate and he turned out to be sterile, she would lose out on breeding for the whole year. Keep track of everything you watch; tell your friends. If everyone had identical genes, then differences in survival and reproduction would be due to luck, not genes.
Tatiana a. Nov 24, Scurra rated it it was amazing Shelves: non-fictionscience.
The only thing I found myself wishing for was a bit of insight into our human species. Sign In. In species after species, rampant sexual freeness is no malfunction. So go find this book. Budget: GBP1, estimated. Unlimited One-Day Delivery and more. Because if God created all these creatures, well, then he is a bit crazy and I'm sure you don't want your god to be a crazy god.
You are therefore out of date, spending your extra time by reading in this new era is common not a nerd activity.
It's not lewd I first read it in high school and she does a fantastic job of bringing up things my husband gets excited to learn about and then explaining dr tatianas sex advice to all creation dvd in Perth science behind them in a way he can understand, so it's not just for those of us who study this stuff.
Peachicks sired by males with fancier tails survive at a higher rate than those fathered by more humdrum-looking males—which at first glance supports the good genes hypothesis, The trouble is, there's always the possi- bility that the effect appears simply b se females who mate with sexy males take more trouble over their offspring.
Lots of good and interesting science in it though.
Females compensate for the loss of nutrients by copulating with other fellows all the more. It isn't very big, and some of the exespots are wonky. These brown tropical frogs have evolved switchblades: on each hand, just above the thumb, males have a sharp, retractable spine that is shaped like a scythe.
I'm afraid that females in many species often provoke males into fighting over them. But young males are not without hope.