what did the fruit flys change into? Flys?
and when they do experiments on bacteria over many thousands of generations....they get bacteria over and over again.
That's what Evolution is. It's building upon basic design, not just randomly changing things around. It doesn't predict that eagles will transform into squirrels. Noticed I used the word transform instead of evolve?
The word 'evolution' in general context means a process of development.
There was once only one species of a basic vertebrate at one time. It eventually split into different populations and evolved many different variants. Examples include the crocodilians, the squamata(lizards and snakes), turtles, birds and mammals all evolved from basic vertebrates, and all are still vertebrates.
Three main groups of extant mammals evolved from a
basic single population of mammals. The monotremes, the marsupials and the placentals(there's more than those three that are extinct). All three are still mammals.
The placental mammals have many variants that evolved later but at one time was just a single population of a single group. Today, there's so many to name, but I'll name a few. You have rodents, carnivora(dogs, cats, bears), cetaceans, bats, primates etc... all are still placental mammals.
Primates have many different variants such as lemurs, tarsiers, simians etc.. All are still primates and primates are still mammals.
Simians contain New World Monkeys and Catarrhini. Catarrhini contain Old World Monkeys and Apes. Apes contain Lesser Apes and the Great Apes. Great Apes contain Orangutans, Gorillas, Chimps and Humans.
You're still an ape which is still a simian which is still a primate which is still a mammal which is still a tetrapod which is still a vertebrate which is still an animal which is still an eukaryote.
Future descendants of humans will always be humans. But what could happen with isolation is we could get many diverse groups of humans with drastic differences, but all share basic human features. Just like at one time there was one basic group of a species we'd call "the mammal". But today, mammal is ranked as a class and not a species because it's a group that has diversified so drastically.
All they proved is that all organisms can adapt, they can become quite varied in size and shape.... but they can't change into something other then what is written in their dna.
Well then it shouldn't be too hard for you to understand that a homo sapien evolved from a basic great ape with virtually very little change in DNA. I'd hardly consider that a change of "kind" as you put it.