The case for spider conservation: They keep pests from devouring humans’ food supply

by Brian Palmer

Wildly successful species of the Cenozoic era , which began about 65 million years ago — have trouble empathizing with polar bears, tropical frogs and dolphins as those animals sink toward extinction. A better way is to appeal to a human’s unstoppable desire to forward his own self-interest. This is how Norman Platnick talks about spider conservation.