During preceding epochs it seems likely that rival groups or factions had gone through a period of power-survival struggle which eliminated one rival after another until economic ownership and political authority were both vested in the same ruling oligarchs.

Evidently in their cases neither the coloration nor any habit of concealment based on the coloration is a survival factor, and this although they live in a land teeming with bird-eating hawks.

Survival strategy.

One civilization after another has passed into the limbo of history leaving, sometimes, splendid ruins as a testimonial to its evident inadequacy to meet the survival needs of oncoming generations.

Such ideas, carried to their logical conclusion, make the group in question superior to its neighbors in survival qualities and a people chosen by its gods.

There is now a problem of excess population of the mugger crocodiles at the Croc Bank partly because they breed twice as much at the croc bank compared to in the wild and also due to their high survival rate.

But the idea is a survival andand this is the important pointan admission of failure to understand where right lies: to "fight it out" is the remedy of the boy who for the life of him cannot see who is right and who is wrong.

Some species owe much to a given attribute which may be wholly lacking in influence on other species; and every one of the attributes above enumerated is a survival factor in some species, while in others it has no survival value whatever, and in yet others, although of benefit, it is not of sufficient benefit to offset the benefit conferred on foes or rivals by totally different attributes.

In Roman and Egyptian civilizations, the period of survival conflict led to the centralization of wealth and authority.

"Survival food," opined Zip.