Your time machine didn’t just break… it betrayed you. Welcome to the Paleozoic Era, where oxygen was richer, nature was ruthless, and bugs were the apex predators 🦂🐜 Before dinosaurs. Before mammals. Before humans ever thought they were in charge. Giant arthropods ruled the land, oceans teemed with alien life, and survival wasn’t a right — it was a gamble. Makes you wonder… was Earth ever meant for us, or are we just borrowing it for a moment? Some scientists say higher oxygen made this possib