you know how all mammals were once fish? Well some of those intermediary species still survive to this day, like the lovable platypus :3 Also marsupials aka pouch things—one of those intermediary steps from layings like fish to incubating them in a placenta.
you know how all mammals were once fish? Well some of those intermediary species still survive to this day, like the lovable platypus :3 Also marsupials aka pouch things—one of those intermediary steps from layings like fish to incubating them in a placenta.