Totally unconvinced by the presenter's suggestion that we don't know what sent the megafauna to extinction. As Occam's Razor states "the simplest solution is most likely the right one" and the simplest solution is that Aboriginal hunting combined with the extensive use of fire by Aboriginal people at a time when climate change was drying out the Australian climate all combined to push the megafauna into extinction. The coincidence of these species dying out at roughly the same time as the first human occupation of the continent simply cannot be ignored.
Did you even listen to the video? The entire point was that we haven't found enough evidence to prove that most of the Megafauna was even still around by the time that aborigines arrived. And in reference to simplicity, four hundred years ago the simplest solution for the existence of anything was creationism and obviously that wasn't exactly the case.
@@rainydaykennels Putting aside the fact one watches a video, not listens to one, yes, I watched most of this video and remain unconvinced. He makes the point that fire affected the environment of these now extinct megafauna and who was lighting these fires: Aboriginal people! It seems reasonable to accept that a changing climate didn't help these species survive but it is just so coincidental that, after living on the continent for millions of years, suddenly a change of climate is the only or primary reason they suddenly die out? Don't think so.
great video! but i couldn't help but notice major problem in the point of "number of bones with evidence of butchery" The point stated was that "no mega fauna bones had been found with evidence of butchery" This is incorrect as it was stated just before living mega fauna like kangaroos and cassowary still are alive. It's a fact that aboriginals hunted kangaroos so surely their are marks of butchery on bones of kangaroos... meaning there is evidence of butchery on the bones of mega fauna. otherwise your saying that aboriginals didn't hunt any animals that counted as mega fauna like kangaroos and simply incorrect.
Australian megafauna was wiped out due to Aboriginal hunting. Co-evolution between humans and African megafauna gave the aforesaid time to adapt in response to evolutionarily driven advancements in human predation. This premise explains the demise of the American Megafauna north and south after humans entered the New World 13000 years ago via the temporary Bering Strait land bridge. Upon the first immigration of humans to the Australia/New Guinea land mass during one of the innumerable Ice Ages driven by fluctuations in Solar output, they encountered a Pleistocene megafauna unadapted to their predations. Archeologists know the most recent ice age was not a unique event in geological history. Therefore climate change would be an unlikely explanation of the demise of the Australian megafauna, especially given their evolutionary continuance over tens of millions of years. So. The heavy-boned, slow and meat heavy Diprotodons/Giant Kangaroos/Giant Snakes etc were easy prey. In a hunter gatherer economy economy of effort was intrinsic to survival. Therefore the Australian megafauna were wiped out by Aboriginal hunting. Specialised apex predators such as the Thylaceo would have starved to death as their prey disappeared.
Aboriginal hunting was harmonious with the land, they knew not to wipe out large amounts of animals. This explanation doesn't factor in that. Also, some of the North American Megafauna were extremely dangerous, why would tribes people with primitive weapons take on such challenges? Native American tribes also lived in harmony, how and why would they wipe out such animals?
@@ethanhutchinson4265 ...."Aboriginal hunting was harmonious with the land"....It's a joke right?? Aborigenes burned all the country. Australia was a green eden. Today, it's a terrible desert !
Awesome presentation, Seems that the extinction was possibly gradual and caused by drought events. When large herbivores die out so do the large predators and the smaller more agile and resourceful species hang on followed by the scavengers. Fascinating stuff. Thanks for uploading.
interesting presentation but asteroid impact, possibility not discussed for example. magafauna mass extinction was a global event at roughly the same time the ice age ended, so how did this even occur? but bris sicience is really cool and i will be watching more
this guy starts off incorrect no way that long ago people traveled by boat for migrating, back in those days ice caused the oceans to be shallower and expose major land bridges, basically the earth was less than 50% water, and with all the land masses vegetarians was in abundance and allowed animals to grow large to their surrounding,
So glad i watched this presentation. It was fascinating. I will continue to follow this subject as studies progress.
Wow. Had no idea the data was so sparse and the consensus position so overstated (to put it mildly). Great stuff!
Totally unconvinced by the presenter's suggestion that we don't know what sent the megafauna to extinction. As Occam's Razor states "the simplest solution is most likely the right one" and the simplest solution is that Aboriginal hunting combined with the extensive use of fire by Aboriginal people at a time when climate change was drying out the Australian climate all combined to push the megafauna into extinction. The coincidence of these species dying out at roughly the same time as the first human occupation of the continent simply cannot be ignored.
Did you even listen to the video? The entire point was that we haven't found enough evidence to prove that most of the Megafauna was even still around by the time that aborigines arrived. And in reference to simplicity, four hundred years ago the simplest solution for the existence of anything was creationism and obviously that wasn't exactly the case.
@@rainydaykennels Putting aside the fact one watches a video, not listens to one, yes, I watched most of this video and remain unconvinced. He makes the point that fire affected the environment of these now extinct megafauna and who was lighting these fires: Aboriginal people! It seems reasonable to accept that a changing climate didn't help these species survive but it is just so coincidental that, after living on the continent for millions of years, suddenly a change of climate is the only or primary reason they suddenly die out? Don't think so.
Absolutely fascinating :)
Great update on the Research
great video! but i couldn't help but notice major problem in the point of "number of bones with evidence of butchery" The point stated was that "no mega fauna bones had been found with evidence of butchery" This is incorrect as it was stated just before living mega fauna like kangaroos and cassowary still are alive.
It's a fact that aboriginals hunted kangaroos so surely their are marks of butchery on bones of kangaroos... meaning there is evidence of butchery on the bones of mega fauna. otherwise your saying that aboriginals didn't hunt any animals that counted as mega fauna like kangaroos and simply incorrect.
He's like "don't swear on the website"
I'm dying for somebody to be like "a motherfucking asteroid!"
Australian megafauna was wiped out due to Aboriginal hunting. Co-evolution between humans and African megafauna gave the aforesaid time to adapt in response to evolutionarily driven advancements in human predation. This premise explains the demise of the American Megafauna north and south after humans entered the New World 13000 years ago via the temporary Bering Strait land bridge.
Upon the first immigration of humans to the Australia/New Guinea land mass during one of the innumerable Ice Ages driven by fluctuations in Solar output, they encountered a Pleistocene megafauna unadapted to their predations.
Archeologists know the most recent ice age was not a unique event in geological history. Therefore climate change would be an unlikely explanation of the demise of the Australian megafauna, especially given their evolutionary continuance over tens of millions of years. So.
The heavy-boned, slow and meat heavy Diprotodons/Giant Kangaroos/Giant Snakes etc were easy prey. In a hunter gatherer economy economy of effort was intrinsic to survival. Therefore the Australian megafauna were wiped out by Aboriginal hunting. Specialised apex predators such as the Thylaceo would have starved to death as their prey disappeared.
Aboriginal hunting was harmonious with the land, they knew not to wipe out large amounts of animals. This explanation doesn't factor in that.
Also, some of the North American Megafauna were extremely dangerous, why would tribes people with primitive weapons take on such challenges? Native American tribes also lived in harmony, how and why would they wipe out such animals?
Hey dumb ass asia got megafuna to!!
Megafauna still exist elsewhere retards
@@ethanhutchinson4265 ...."Aboriginal hunting was harmonious with the land"....It's a joke right?? Aborigenes burned all the country. Australia was a green eden. Today, it's a terrible desert !
@Scrambo 1 Burning was also a dramatic change to the landscape. Humans are likely to blame
Awesome presentation, Seems that the extinction was possibly gradual and caused by drought events. When large herbivores die out so do the large predators and the smaller more agile and resourceful species hang on followed by the scavengers.
Fascinating stuff. Thanks for uploading.
interesting!
Procoptodon never hopped it ran
Look up a geologist named Randall Carlson if you want your mind blown.
He doesnt talk about 'ninja turtles' either. Look him up.
Antarctica kept the ice away.
interesting presentation but asteroid impact, possibility not discussed for example. magafauna mass extinction was a global event at roughly the same time the ice age ended, so how did this even occur? but bris sicience is really cool and i will be watching more
Asteroid impact that wiped out megafauna from mainlands and let megafauna survive in islands ? This is laughable...
44:40
this guy starts off incorrect no way that long ago people traveled by boat for migrating, back in those days ice caused the oceans to be shallower and expose major land bridges, basically the earth was less than 50% water, and with all the land masses vegetarians was in abundance and allowed animals to grow large to their surrounding,