What is the most important survival tool in the jungle?

But there's one survival tool that beats out all the rest.

Take off the face, pull out the gears and fill the empty space with survival tools.

She'd seen no sign of surveillance on the drive here, but paranoia was a survival tool which had served her well over the years.

Evolutionary psychology has attempted to provide various reasons for love as a survival tool.

Knowing how to relax becomes something of a survival tool at such times.

Bottled water, the most essential survival tool in the desert, is not provided by American companies.

Variety is, after all, the survival tool of all theaters.

There were times throughout history when the ability to store fat was an important survival tool.

Nothing Scientists say most laughter is a survival tool for social animals, not an intellectual response to wit.