Earth is currently in the middle of a mass extinction, losing thousands of species each year and new research suggests environmental changes caused the first such event in history, which occurred millions of years earlier than scientists previously thought.
Earth is currently in the middle of a mass extinction, losing thousands of species each year and new research suggests environmental changes caused the first such event in history, which occurred millions of years earlier than scientists .
Earth is currently in the middle of a mass extinction, losing thousands of species each year and new research suggests environmental changes caused the first such event in history, which occurred millions of years earlier than scientists previously thought.