Looking at theselfless loveour canid companions often bestow on humanity many multitude have ask : “ What did we do to deserve dogs ? ” The response may be not being able-bodied to treat a high - protein diet .
weigh the importance of dogtooth companionship to human success , we do n’t know much about how it happened . We sleep together that dogs split from their skirt chaser ancestors between 27,000 and 40,000 yr ago , and that frankfurter became reclaim sometime between 18,000 and 30,000 years ago , with theearliest know pet dog burialdated to 14,200 year ago . We do n’t know whether tameness happenedonceortwice , though , let alone how we descend to know what had once been a rival and threat . After all , even after we had made detent part of our home , the “ big bad wildcat ” lurked in our nightmare and faggot narration .
The most popular theory for how dogtooth tameness came about involve cooperative search with wolves , or lurk around campfires for permissive waste ( them , not us).Dr Maria Lahtinenof the University of Helsinki in Finland point out that the more wolves competed with our ascendent , the less probable we were to permit their presence nearby . She see overlap in dieting as the cardinal bar of how strong this contest would have been .
InScientific Reports , Dr Lahtinen show out all the early examples we have of hotdog burials follow from Arctic or sub - north-polar sites towards the end of the last Ice Age . Winters were so fierce at the clock time homo would have had few plants to supplement gist - rich diet .
Moreover , she mark , the human liver can not handle a diet too high in protein , a bequest of our herbivorous heritage . In summertime with abundant fruits , nuts , and seed this would not have been a problem , but Lahtinen argue fatty cut would have been prefer over lean meat cum winter .
woman chaser have no such restriction . Althoughpartial to blueberriesin season , they can live on a diet of nothing but protein - rich meat for months if necessary .
Lahtinen looked at the protein contentedness of all coinage considered to be winter quarry in late Ice Age north - central Eurasia . Aside from weasel , all were so protein - rich people would have needed a part - veg diet to digest the lean cuts . Why not give what was left for the wolves ?
For some quarry , such as adult caribou , the superfluous protein is small and probably deficient to take shape the basis of a lasting kinship . However , rabbits and bison are so protein - rich there would have been plenty to apportion .
Wolves fed on meat humanity did n’t desire would have pose less menace to the prey we did , and as time went on the stuffy kinship forged over a carcass made room for fellowship and joint hunting . In summertime the interracial dieting would have allowed humanity to eat the skimpy cuts , but with abundant solid food available , it would have been soft to allow for some by for our winter friends .
