Guts: Origin Of Us Video Flashcards
As you can’t catch parasites but rather you get them from food, why is significant (i.e., what does it prove?)
It’s significant in at it proves that at some point humans and lions were sharing the same type of food, that is a big herbivores.
This traces back millions of years. It also provides proof that our theory of early humans being hunters and eating meat.
Scientists were able to date when this transfer of a parasite happened, allowing us to know which hominin species started to eat meat. Which was homo erectus.
The narrator discusses that the Man the Hunter model may be “a little too simplistic.”
Why?
What do saliva studies suggest?
Because meat wasn’t the only thing our ancestors were eating. There’s evidence that suggests we adapted to a different source of food Which was crucial to our survival, and it’s found in our saliva.
Our saliva Contains enzymes that break down our food before we swallow it. This allows us to know what our diet consist of. Amylase Is an enzyme that helps break down starches, Studies show that we have 6 to 8 times as much amylase then of a chimpanzee.
Meaning are specifically adapted to eating more starchy foods.

In terms of gender, who contribute more to the daily diet?
What is adaptive when food is scarce?
What allowed early humans to spread out to new environments?
Women do, About 60% of the calories for the entire group.
The human diet was adaptive, allowing us to eat a wide variety of food.
Meaning we weren’t limited to a certain type of food source, meaning we could spread out to new environments and eventually colonize the globe. So our adaptive diet allowed us to spread out to new environments. 
Through hominin evolution we see an increase in brain size overtime and large brains need a lot of energy.
Although traditionally it was believed that meant meat consumption to acquire that energy what is the new idea?
Briefly describe the advantages of cooked food over raw.
The new idea was that they made fire and cooked the food. So it was cooking not eating meat, that fuelled our evolution of our big brains.
Advantages are cooked food is easier to digest then brought food. Takes less energy to chew. So we get more energy from eating cooked food, because we use less energy to digest it. 
Through our evolutionarily history, food has shaped our behavior.
Briefly describe how sharing food is thought to be the origin of “monogamy”?
Kind of this sexist idea where the men are hunters and the women are the gatherers.
So pairing up would be an advantage because men would bring back meat and women would bring back fruit and etc.
