Gender task specialization in mammal packs over millions of years was the best way to guarantee survival and evolution.

FORBES: Magazine Article

United had already won the Premiership title when they played the Hammers, who needed at least a point at Old Trafford to guarantee survival.

BBC: Warnock hits out after relegation

I've got some news for you: Cost-cutting alone won't guarantee survival.

FORBES: Magazine Article

These crops provide a family's best guarantee of survival, but no more than that.

ECONOMIST: Poverty

This was no guarantee of survival.

WSJ: Jeeping Up on India's Wild Lions

Because although the first steps towards banking union agreed early this morning are important, they do not guarantee the eurozone's survival.

BBC: Eurozone banking union that works for Britain?

Being of a familiar type did not guarantee a male success and survival, but it brought pretty good odds with it.

ECONOMIST: Female spiders are picky lovers

Yet popularity alone cannot guarantee Mr. Najib's survival as head of the United Malay National Organization (UMNO), the party that forms the linchpin of the National Front.

WSJ: Michael Vatikiotis: Seeds of Change in Kuala Lumpur