I don't believe these studies at all, times have changed and the problem is always extremist people. Judging by religions is a mistake at this time. Or are we still living in caverns
You are believing the wrong studies. Time changes, but people don't. All you need to do to see this is look qt people of the past to see that they had heads, arms, hands, feet, legs, torsos, etc. just like we have.
People still live in caves in various parts of the world. If there were an abundance of caves right now in parts of California, people would be living there rather than in the tent cities.
All the skeletons and parts of skeletons of prehistoric man that we have, are so few in number that they could fit on one table. Their differences from modern mankind suggest genetic or other deformities in a few people or animals, rather than evolution. Evolution, including the timeline and formally accepted age of the earth, is a complete fable.
Time for you to start learning what is real, rather than what you want to believe.
''dont know how many hominin fossils there are in the world. There is no tabulation. The pace of discovery now is too fast to track. Each year for the last decade, anthropologists have unearthed hundreds of fossil specimens from extinct hominin species and populations.
By 2012, the Sima de los Huesos hominin assemblage, near Burgos, Spain, numbered more than 6500 specimens from at least 28 individuals. Many more fossils are recovered in every field season. In South Africa, the Rising Star hominin sample today numbers more than 2000 specimens from at least 18 individuals. This deposit of hominin fossils was completely unknown until 2013. From just two caves, that is nearly 9000 fossil hominin specimens.''
https://medium.com/@johnhawks/how-much-evidence-have-scientists-found-for-human-evolution-355801dfd35c
https://anthropologynet.files.wordpress.com/2007/06/fossil-hominid-skulls.jpg
You can clearly see all the differences.