Quotation:

As long as we study animals not in laboratories and museums only but in the forests and prairies in the steppes and the mountains - we once perceive that though there is an immense amount of warfare and extermination going on amidst various classes of animals and specially amidst various species, there is at the same time as much or perhaps more of mutual support, mutual aid and mutual defense amidst animals belonging to the same species or at least to the same society . .