祖父母在身边有利于保护人类物种的生存
<p><span word="They">They</span> <span word="dote">dote</span> <span word="on">on</span> <span word="their">their</span> <span word="grandchildren">grandchildren</span>, <span word="offer">offer</span> <span word="a">a</span> <span word="treasure">treasure</span> <span word="trove">trove</span> <span word="of">of</span> <span word="wisdom">wisdom</span> <span word="and">and</span> <span word="provide">provide</span> <span word="an">an</span> <span word="invaluable">invaluable</span> <span word="babysitting">babysitting</span> <span word="service">service</span>.</p><p><span word="But">But</span> <span word="it">it</span> <span word="seems">seems</span> <span word="grandparents">grandparents</span> <span word="have">have</span> <span word="a">a</span> <span word="more">more</span> <span word="crucial">crucial</span> <span word="role">role</span> – <span word="survival">survival</span> <span word="of">of</span> <span word="the">the</span> <span word="species">species</span>.</p><p><span word="Their">Their</span> <span word="practical">practical</span> <span word="and">and</span> <span word="financial">financial</span> <span word="support">support</span> <span word="helps">helps</span> <span word="keep">keep</span> <span word="youngsters">youngsters</span> <span word="fit">fit</span> <span word="and">and</span> <span word="healthy">healthy</span>, <span word="while">while</span> <span word="their">their</span> <span word="love">love</span> <span word="and">and</span> <span word="ability">ability</span> <span word="to">to</span> <span word="listen">listen</span> <span word="helps">helps</span> <span word="children">children</span> <span word="and">and</span> <span word="teens">teens</span> <span word="get">get</span> <span word="through">through</span> <span word="difficult">difficult</span> <span word="periods">periods</span> <span word="such">such</span> <span word="as">as</span> <span word="the">the</span> <span word="divorce">divorce</span> <span word="of">of</span> <span word="their">their</span> <span word="parents">parents</span>.</p><p><span word="The">The</span> <span word="conclusions">conclusions</span> <span word="come">come</span> <span word="from">from</span> <span word="Swiss">Swiss</span> <span word="and">and</span> <span word="Australian">Australian</span> <span word="researchers">researchers</span> <span word="who">who</span> <span word="analysed">analysed</span> <span word="previous">previous</span> <span word="studies">studies</span> <span word="from">from</span> <span word="around">around</span> <span word="the">the</span> <span word="world">world</span> <span word="to">to</span> <span word="pin">pin</span> <span word="down">down</span> <span word="the">the</span> <span word="role">role</span> <span word="of">of</span> <span word="grandparents">grandparents</span>. <span word="Several">Several</span> <span word="studies">studies</span> <span word="have">have</span> <span word="linked">linked</span> <span word="grandmothers">grandmothers</span>, <span word="in">in</span> <span word="particular">particular</span>, <span word="with">with</span> <span word="survival">survival</span> <span word="of">of</span> <span word="the">the</span> <span word="species">species</span>.</p>
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