Sediba does not defy the theory of evolution one bit and neither does the 195 million year old mammal rodent. I am sure you wish it did, but it does not.<quoted text>Yes, science is doing a lot of research on evolution, much to your chagrin since it is refuting a lot of your preconceptions.
Science does not stand firm on the idea of animals descending from other species, which I am sure you meant. That is one question that is being looked into. 2 million year old Sediba has put a monkey in that wrench, since he was found to be more evolved that neanderthal man and closer to human man. Also, 195 million year old Jurassic rat is laying claim to being human's oldest ancester, so you may want to trim your whiskers and go visit some kins in your nearest sewer.
Seeing fossils, which you have never found, are simply evidence of fossils, not evolution. How many times must you students be told this? The second time was one too many.
I have absolutely no problem having a 195 million year old ancestor that was a rodent. Do you? Is it an insult to you? If so, then I can see why you automatically dismiss evolution. It offends your thin skinned mind.