I read a line in an article which said that it might be possible to bring back dinosaurs from their DNA samples. It crossed my mind that only Allah can give life but I still kept reading hoping this was true because I got excited about the possibility of this. is what I did kufr? I hope you can give me a quick answer brothers and sisters
What you are describing is, men bringing back dinosaurs from their DNA. But man still need the DNA. This isn't creating life. This would be using a process to use earth's resources to make something. That is not haram. So, no, you didn't commit kufr.
This does not constitute kufr in my opinion; kufr relates to matters of religious truth and whether or not you accept them, and you didn't deny the doctrine that only god gives life. Actually bringing back a dinosaur - or hoping that someone will - would no more be kufr than baking a cake.