Continued Part III
The theory has mainly been applied in isolated incidences and without accounting for all animals lost. The number of mammoths alone was estimated between 5 and 12 million. A staggering number which suggests other factors played a prominent role in their extinction.

The sheer body mass to hunt to extinction is an anomaly in itself. At roughly 6 tons each that is roughly 60 million tons of wooly mammoth to be hunted and killed. Then add the many other species of megafauna. Could humans cause this level of hunting driven extinction?

2) Variations

Is it a stretch to imagine humans as the sole cause for the termination of all species at once? It may, for instance, explain why one species was hunted into extinction. What of the vastly different types of megafauna present at the last ice age?

Hunting a mastodon and saber tooth tiger, for example, are two very different styles of prey. The vast disappearance appears to be a barrier to the hunting hypothes

part II
12900 years ago prehistoric earth was exiting the last Ice Age. North America was a haven for large land mammals. Here roamed roughly 50% of all animals larger than 32kgs and all species above 1000kgs.

Then, in a geological blink of an eye, during the Younger Dryas period, North America lost 33 distinct genera of mammals. These were mainly the large megafauna who had previously thrived in the area for thousands of years.
It equated to 75% of all mega mammals living on the earth during the ice age. They all vanished from the planet.
The list of the megafauna lost in North America alone is vast.
It includes:
Horses
Camels
Giant sloths
Tapirs
Giant armadillos
Elephants
The short-faced bear
American lions
Dire wolves
All species of mammoth
Mastodons
The giant beaver

My info goes back 440,000 year when the Angels were cast out of Heaven. The answer to your questions will be in several post. So let begin with Megafauna Extinction of younger dryas circa 12,000 years ago.
1: https://www.youtube.com/wa...
It is hard to picture just 12 000 years ago earth was at the end of the last Ice Age. North America was a swampy marshland and was home to the largest population of megafauna found anywhere on the planet. Today these lumbering land creatures are mainly confined to herds across the plains of Africa.
How did such a dominant array of species disappear? It took one of the most unprecedented sets of conditions seen on earth, those that ended the last great ice age.
The Younger Dryas event describes the climatic period as the earth moved out of the ice age.
Geological evidence is revealing how conditions during the Younger Dryas remodelled our planet.
Continued next post ….