Part 2 of 3. The techniques some creatures use to secure their meals are detailed. Included: the drongo, a South African bird that scams its food from vulnerable social weaver birds; the orchid mantis, which attracts insects by mimicking a flower; killer whales, which manipulate the behavior of herring; and gray squirrels, which sometimes fake-bury nuts to throw off any squirrels that may be spying on them.