When, if they were already fossils back then?
205314
I think they are rotating them around to the different schools so that no one will know that they are actually aliens from the planet Zenon commisioned by our government to torture and torment the young into submission. These creatures actually do not have a face but must paint it on every morning in an attempt to look human but obviously fail. These beasts may live to be 1,000 years old and feed on cats and oat bran. Many usually raise or capture their own cats but there are many "cat ladies" (also aliens) that raise them for sale to such beings. \n\nCurrently the government denies such activity but activist groups such as MAAT (Mothers Against Alien Teachers) are working round the clock to bring to light this insideous plot against our youth and Americans in general. Althought MAAT works in secrecy you can help the movement by being alert and watchful for the aliens. Any "person" holding a ruler, wearing glasses, having beehive haircuts, and having the indicitive "chicken skin" neck tissue is most likely a Zenon alien. They also may or may not have and hair on their chins or in their noses and ears...Usually though if you notice these last few indicators it's too late...
81454
About 2,000 years i think
528905
just go in ask.com on type in fossils
230716
It has already happened.  An island off the coast of California is yielding fossils of dwarf elephants that did not grow to 'full size' because of limited space.  Apparently there wasn't a market for them.
589813
I think you might be referring to an ice age that occurred in the Proterozoic leading to the pre-Cambrian explosion?  There was also some theory's about volcanoes and the creation of the atmosphere as we know it.  When photosynthetic life evolved they respired O2 which not many of the other (anaerobic)organisms could breath, and over millions of years plants killed the animals.  (hows that for a mind loop?) an animals had to start all over again leading to the pre-Cambrian explosion.  It was an evolutionary explosion because there so many niches left vacant by the anaerobic organisms. so they diversified, only the strongest survived and eventually achieved a level of equilibrium (so to speak). Or another possibility is that i am indeed full of crap.
289658
I don't really know which was first, but I would have to guess dinosaurs.  Remember, that one of God's weeks is probably not a week to us.  There are some rules on time in the Bible, and in one scripture (can't remember where it is in the Bible), one day for God is a thousand years for us.
23110
They aren't "preserved" except in form. They are replaced by minerals, the major exception being calcium carbonate shells of things like oysters and clams (Mollusks), but those are shells and might not be considered "body parts" as they are not the soft tissue. Most fossil bones are replaced with a mineral. Most fossil wood is replaced with minerals, but some actual parts of the wood sometimes remain. Fossil insects imbedded in amber are the real original bug, but probably aren't really a fossil.
267907
Based on fossil, genetic, and molecular evidence, we have a long train of ancestors in our history.  Modern humans and other primates, such as monkeys, have a common ancestor that lived about 25 million years ago, and our ancestor would probably *not* be considered a "monkey."  Before that were early mammals, and before that mammal-like reptiles, the sauropsids. Before that were early reptiles, and amphibians.  And yes, before that, about 440 million years ago, one of our ancestors was a fish.  So you are correct.
469697
True...that is what I learned about them...Appalacians are just older.
375700
Of course they did.....\n\nWe probably have some of like them in this day too..... Look at the Aborigine (for example).\n\nBut, remember, there was a world that existed before the world we know today.... (("the earth was "void" and "without form"= a sign that it was destroyed at some time.....)) \n\nSo, let that tell you that some were here.... what they did with that life, we don't know.....  What we do know is that they are not alive today.... but we do have remnants of what used to be.....\n\n\nYour sister,\nGinger
462687
.  Animals which have a simple evolutionary history are usually soft bodied, and soft bodies animal do not leave good fossils.  It is easy to find analogs for evolutionary steps toward certain animals, the whale for example,  but finding an clear-cut sequence of fossils is difficult.\n.  But, looking at analogs, consider the weasel, the otter, the seal, the manatee and the whale.  The difference between any two steps in this sequence is fairly small, but the difference from one end to the other seems quite large.\n.  There are enough fossils whose ages may be determined that, studied as a group, studied as a group, they demonstrate an increase in complexity of organisms over time and indicate familial relationships.  Bony headed fishes, known only from fossils, were the ancestors of fish like the coelacanth.  Fishes like the collegian were ancestral to both modern fishes and the fish which pulled themselves up from the water on strong, bony fins.\n.  The horse has some obvious ancestors, but the the fossil record of those ancestor becomes weaker as you go back in time.  The fossil record  between shrew like mammals and those creatures which had some horse like characteristics has big gaps in it..
551851
I don't put my faith in scientists. The same scientists say that the Earth is billions of years old and then they change the dates over and over. The truth is that no one really knows, how could they? Scientists said that certain fish died off millions of years ago, but they pull up fish off the coast of Madagascar that should have been extinct. I don't trust scientists because they claim to have facts when in reality they are theories.
229952
ask a christian or a muslim then you would know that no dinosaur was more than 6000 years old :D\nother than that i don't really know :-<
386259
Humans came a long time after dinosaurs, Apart from the Flintstones. and if you wanna know what your ancestors looked like , ME
653788
They wouldn't have changed at all over the past 500 years.\n\nReal progress only happens by merging different ideas.
1374
Around 600,000 years old. Maybe even older.
337765
The lower Ordovician, about 490 million years ago. This link you have to scroll down quite a bit.