I wonder which critters came first?
Those with an exoskeleton; or those with an endoskeleton?
And how was the transition from one in to the other accomplished?
“I wonder which critters came first?”
Don’t have a clue, all I know is they were created on Day 6 the same day as man?
“And how was the transition from one in to the other accomplished?”
Maybe DNA either expressed or not expressed or just different insects from the beginning.