LOL you are confusing deaths from predators versus longevity based on diet.
“LOL you are confusing deaths from predators versus longevity based on diet.”
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Mice and deer do not live long lives. Period. Most do not die from predators. However, most lions die at about 1/3 of their lifetime in captivity due to starvation and/or injuries from fighting or from damage while hunting.
“However, humans stand apart from all apes in some features of the gut proportions (Fig. 1). In humans, more than half (56%) of the total gut volume is found in the small intestine whereas all apes have by far the greatest total gut volume (>45%) in the colon (9,10). In addition, the overall size of the human gut in relation to body size is small in comparison to that of apes (9,10).
Hindgut dominance in apes suggests adaptation to a diet lower in quality than that consumed by humans, a diet containing considerable bulky plant material, such as insoluble fiber and seeds. In contrast, the proportions of the human gut, dominated as it is by the small intestine, the principal site of nutrient digestion and absorption, suggests adaptation to a high quality diet, one that is nutritionally dense and highly digestible relative to that of any wild ape “
https://www.sciencedirect.com/science/article/pii/S0022316623025518
Fire and the Brain: How Cooking Shaped Humans
“Compared to chimps, our nearest living relatives, and to australopithecines, the ancestors of our genus, Homo, humans have puny digestive systems. We have smaller teeth, weaker chewing muscles, and shorter gastrointestinal tracts. But we also have higher energy needs. Our bigger bodies require more calories to run. We travel farther than chimps as we go about our days (or at least we did, before modern societies invented the couch potato). And we have far bigger brains, about three times the volume of those of Australopithecus, and even more than that compared to chimps’. Big brains make a big difference, because brains use more energy than any other human organ—up to 20 percent of our bodies’ total energy use. So how do we get enough calories to support our energy-hungry bodies and lifestyles?”
https://www.amnh.org/explore/science-topics/microbiome-health/fire-cooking-human-evolution