国家/地区：美国
时长：120分钟
语言/字幕：英语
Before man ruled the world, Earth was a land of giants. Count down the biggest beasts of their kind to ever roam the planet in this eye-opening original special, and uncover the secret lives of these super-sized species.…
Before man ruled the world, Earth was a land of giants. Count down the biggest beasts of their kind to eve…
