__________________ Creationism has not made a single contribution to agriculture, medicine, conservation, forestry, pathology, or any other applied area of biology. Creationism has yielded no classifications, no biogeographies, no underlying mechanisms, no unifying concepts with which to study organisms or life. - Botanical Society of America's Statement on Evolution
1. we are not descended from monkeys. we share a common ape ancestor with today's monkeys
2. there are no feathers in our evolutionary history. mammals split from reptiles and amphibians before birds developed. archeopteryx probably hunted mammals.
3. upright standing DOES cause some problems, but they may have been outweighed by the ability to hold a larger head, and thus a larger brain. bipedalism allows the body to carry a much heavier head than four-leggedness.
4. language is a more complex form of other communications already existing in the animal kingdom...
1) why did (and how did) monkeys lost their feathers?
2) why did monkeys start walking upright? (even it is a disadvantage for them)
3)why did (ofcourse how did) they start talking?
(2) & (3) You're asking for a story. Whenever anyone asks "why?" in relation to an evolutionary change, they're asking for a story. Because no one can know why; we can only speculate.
So here's a story:
(2) Monkeys started walking upright (part of the time - they're not fully bipedal) because they could.
(3) Monkeys don't actually talk in the way we talk. They do utter noises, and these noises often have meaning, but it would be a stretch to call it "talk". Anyway, the reason they started is because they could.
If you ended up with some new trait, wouldn't you be tempted to try it out? And if it procured you some reproductive advantage, it would stand a better chance of being retained by the species.
I, for one, have the rather unusual ability to make a disgusting noise with my throat (without opening my mouth). I don't know if I developed this as a result of some mutation, or if I inherited it.
It's a trait I've attempted to exploit to improve my reproductive success, but none of my prospective mates has succumbed to its charms.
__________________ Evolution is NOT a theory. It is an observation of change over time in life forms, the evidence for which is too staggering to be deniable by reasonable people. It is fact. Evolutionary theory seeks to explain evolution. Evolutionary theory is not complete and it is not 100% proven. Use of the phrase 'Theory of Evolution' (ToE) is misleading, as it conveys to the lay person the incorrect impression that evolution is uncertain, hypothetical and/or unproven.
Today a young man [deleted] realized that all matter is merely energy condensed through a slow vibration, we are all one consciousness experiencing itself subjectively, life is only a dream and we are the imaginations of ourselves. Here's Tom with the weather.
- Bill Hicks
Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense.