This happened because new rules and institutions — including labor unions, Wall Street regulations, anti-monopoly laws, and higher progressive income taxes — kept economic “predators” (morbidly rich ...

Read about different predator-prey relationships on the reef ... a wax-digesting enzyme system. Populations of the starfish were once kept low by a few key predators, namely the giant triton.

Herds of impala, wildebeest, kudu and other large herbivores are in decline across sub-Saharan Africa, in part due to rising ...