The Ptarmigans Dilemma An Exploration Into How Life Organizes And Supports Itself Theberge by Theberge, John B.;theberge, Mary T 9781299167841, 9781551993454, 1299167845, 1551993457 instant download after payment.

A twig in an eddy -- Species adapting, adjusting. Where the wood duck got its beauty ; Big elk, little elk ; Dawn chorus ; The perfect moose -- Populations : slaves to the rules. Give me land, lots of land ; High-stakes living ; Ten thousand reindeer ; Labrador wild ; All individuals are not created equal ; Footnote : what about humans? -- Ecosystems : wildly active. War on the shrub-steppe ; Behind the scenes ; Team play -- Prospects. Out of the slag heap of nature ; The ptarmigan's dilemma ; Let there be life -- Crouching on the highest step.;The authors examine what the mechanisms of evolution are and how they work. With examples from the very latest discoveries in genetics and ones they have made in their own field work, "The Ptarmigan's Dilemma" "is a ground-breaking explanation of evolution for non-scientists--and a look at the rich diversity of life on Earth that's under threat today.