I’m a youth leader at a church and this is a question written down from a youth member. I myself am a biologist but a recently converted Christian from agnosticism and still seeking answers. Here is the question.
"Is it possible that there used to be less variety of animals and that they evolved (in the sense of change over time and not the theory) from other species split into more diverse and larger variety of species? Would this explain the fossil evidence, and comparative anatomy scientist use to prove evolution (in theory)? If not, is there a Christian interpretation of this evidence?