Smarter from fire
“How has it been possible for us humans to develop such a densely packed brain?”
“Researchers believe it comes from our ancestors beginning to cook food,” Sætre says.
With fire, we could boil, fry, and grill our food. Animals do not have that opportunity.
“Cooked food is easier for the body to digest. So we humans could afford to develop a large and densely packed brain,” he says.
Our organs need food and energy for us to survive. Not just the brain.
“There are therefore limits to how much evolution can afford to use on intelligence,” he says. – Ingrid Schou (February 24, 2023)
Hey, they, they are getting somewhere when they admit that animals are not as smart as humans.
All the rest … Some of us are getting tired of the schtick that chimps are just like humans except that we are not helping them behave that way…
7 Replies to “Claim: Fire is why humans are different from other animals”
That suggests fire led to cooked food which made more resources available to the body for supporting expensive organs like a brain. It still doesn’t explain why we evolved bigger brains in the first place
The so-called “expensive tissue hypothesis” has been around since the 1990s, and the gist is that cooking allowed hominids to grow larger brains because they could (metabolically) afford to grow smaller guts. It seems plausible, but there have been some more recent studies calling the trade-off into question. I don’t have the time (or background) to follow all the details.
That said, you’re right that this kind of theory only explains the removal of constraints that prevented further encephalization amongst ancient hominids. It’s not a theory of the selective pressures that promoted encephalization. One would need to look elsewhere for that.
Sev, brains were designed. Yours probably evolved, which is why you always spew your nonsense.
Hey, Animated Dust, Sunday manners here, okay? But you’re onto something. Fire has been around forever. A life form that wittingly harnesses fire must already have some quality that the others do not.
I’m starting to think some “researchers” cannot think clearly. Maybe a modern human dropped some raw meat in a fire by accident or found a partly cooked animal who died in a fire, and decided to give it a try. Noticing that fire/cooking made it easier to eat, animals killed in the field were cooked from then on.
Then someone dropped a little salt on them by accident. 🙂
The air we breathe is mostly nitrogen followed by oxygen, along with trace gases.
“and I have filled him with the Spirit of God, with ability and intelligence, with knowledge and all craftsmanship,”
“to devise artistic designs, to work in gold, silver, and bronze,”