"Nature, red in tooth and claw with ravine..."

Tennyson's full quote goes as follows:

Man...
Who trusted God was love indeed
And love Creation's final law --
Tho' Nature, red in tooth and claw
With ravine, shrieked against his creed.

- from a group of cantos entitled, "In Memorium A.H.H." (1850). (source)

Photo: Nathan Myhrvold, from The Third Culture.