darwin's theories

I for one a big supporter of darwinian in which he postulated that human derive from one single species.that is monkey.[insert monkey sound here].such as the question of why male had a nipples?actually when baby still in womb,babies were all females so they develop nipples but when they reached age of 4 months then the sex gene starts kicking in and hence decided to make the baby a male or a female or in rare cases a transvestites.[insert gay jokes here]

anyhow any specific traits that human may have now come from our ancestors battling extreme condition as it used to be many hundreds years ago.such as why we have a backache?it's because we human were used to walk using our 4 limbs before,thereby making our spine shaped like a bridge.but due to the evolution those human decided to only use 2 limbs for walking and another 2 to picks up heavy stuff.but this created a consequence in which our spine were pressed down and created an S-like shaped.Human spine were not constructed to be bend into an S shape and so happen we human develop a backache as a daily reminder to not picks up heavy stuff and to always watch our back [pun are intended].

in reference to:

"Hunger evolved as a trigger to drive us to search out food. Our taste buds evolved to encourage us to choose foods that benefited our bodies (such as sugar, salt and fat) and avoid those that might be poisonous"
- The Top Ten Daily Consequences of Having Evolved | Science & Nature | Smithsonian Magazine (view on Google Sidewiki)