That some ferns can survive temperatures well below freezing

That humans put ferns on Antarctica millions of years ago

That Antarctica drifted from a warmer climate where plants could grow

That fossils can be formed in cold climates

Land reptiles are often found all over the world, showing that they can survive in most climates

Land reptiles cannot swim, so the continents must have been connected for them to get across

Land reptiles are never moved around the Earth by humans, so they must have travels to these continents by themselves

Land reptiles fossilized much better than other animal species

Butte

Mesa

monsoon

divergent

Convergent subduction

divergent