The earth was once home to massive prehistoric creatures, including the moa and mammoth, but their demise remains a mystery. It's unclear whether humans were responsible for their extinction or if environmental factors like disease and climate change played a role.
What Killed the Mega Beasts?
Paleontologists unravel the mysteries of the last ice age, examining three rival theories to account for the extinction of colossal beasts: did they succumb to predation, hypothermia, or a lethal contagion?