W
whitecrayon
Guest
dear rock happy and others
from the undergraduate textbook cultural anthropology, 12th ed, by haviland, prins, walrath, and mcbride, i offer the following verbatim textual quote, which i hope elucidates further the valid point you (rock happy) make about meat-eating among homo sapiens.
from the section titled early homo, from chapter four: becoming human: the origin and diversity of our species: “increased meat consumption by our early ancestors was important for human evolution. on the savannah, it is hard for a primate with a humanlike digestive system to satisfy its protein requirements from available plant resources. moreover, failure to do so has serious consequences: stunted growth, malnutrition, starvation, and death. leaves and legumes (nitrogen-fixing plants, familiar examples being beans and peas) provide the most readily accessible plant sources of protein. however, these are hard for primates like us to digest unless they are cooked. chimpanzees have a similar problem today when out on the savannah. in such a setting, they spend more than a third of their time going after insects like ants and termites on a year-round basis, while at the same time increasing their search for edible eggs and the hunting of small vertebrate animals. not only are such animal foods easily digestible, but they provide high-quality proteins that contain all of the essential amino acids, the building blocks of protein, in just the right proportions. our remote ancestors probably solved their dietary problems in much the same way that chimps on the savannah do today (and in some ways…their dietary habits and the physical effort it took to secure food made these early human ancestors healthier than many millions of present-day people). however, without the daggerlike teeth for ripping and cutting flesh, they were at a disadvantage. even chimpanzees, whose canine teeth are far larger and sharper than ours, frequently have trouble tearing through the skin of other animals. it appears then that for more efficient utilization of animal protein, our ancestors needed sharp tools for butchering carcasses.”
the chapter section then goes on to dicuss the earliest identifiable stone tools used by early homo in the lower paleolithic part of the stone age.
from the undergraduate textbook cultural anthropology, 12th ed, by haviland, prins, walrath, and mcbride, i offer the following verbatim textual quote, which i hope elucidates further the valid point you (rock happy) make about meat-eating among homo sapiens.
from the section titled early homo, from chapter four: becoming human: the origin and diversity of our species: “increased meat consumption by our early ancestors was important for human evolution. on the savannah, it is hard for a primate with a humanlike digestive system to satisfy its protein requirements from available plant resources. moreover, failure to do so has serious consequences: stunted growth, malnutrition, starvation, and death. leaves and legumes (nitrogen-fixing plants, familiar examples being beans and peas) provide the most readily accessible plant sources of protein. however, these are hard for primates like us to digest unless they are cooked. chimpanzees have a similar problem today when out on the savannah. in such a setting, they spend more than a third of their time going after insects like ants and termites on a year-round basis, while at the same time increasing their search for edible eggs and the hunting of small vertebrate animals. not only are such animal foods easily digestible, but they provide high-quality proteins that contain all of the essential amino acids, the building blocks of protein, in just the right proportions. our remote ancestors probably solved their dietary problems in much the same way that chimps on the savannah do today (and in some ways…their dietary habits and the physical effort it took to secure food made these early human ancestors healthier than many millions of present-day people). however, without the daggerlike teeth for ripping and cutting flesh, they were at a disadvantage. even chimpanzees, whose canine teeth are far larger and sharper than ours, frequently have trouble tearing through the skin of other animals. it appears then that for more efficient utilization of animal protein, our ancestors needed sharp tools for butchering carcasses.”
the chapter section then goes on to dicuss the earliest identifiable stone tools used by early homo in the lower paleolithic part of the stone age.