Nine
Whatever the cause, dinosaurs, as well as about half of all species on the planet, went extinct. All that's left are their fossils. We still have to take good care of the environment to prevent more animals from dying out.
Whatever the cause, dinosaurs, as well as about half of all species on the planet, went extinct. All that's left are their fossils. We still have to take good care of the environment to prevent more animals from dying out.
