Can we know if we have a soul? what about other people or animals?

This is a more philosophical question and you can debate it as much as you want to but there is no answer that we know of.

Science often contradicts philosophy and religion, then we find out some of the science is wrong and then we find out vice versa.

Right now, all you can do is debate that topic

What exactly are you asking? i’d love to , explain, what you are asking : )