Animal genetic resources for food and agriculture crop and livestock species in the early neolithic time period changed our human evolution and lifestyles. This ability to control food production led to major demographic, technological, political and military changes. Consecutively, thousands of years of natural and human selection, genetic drift, inbreeding, and crossbreeding have contributed to the diversification of animal genetic resources and increased the variety of environments and production systems that livestock keeping takes place. Relatively few species have been domesticated; out of the world's 148 non-carnivorous species weighing more than 45 kg, only 15 have been successfully domesticated. The proportion of domesticated birds used for food
Birds of the West Indies Birds of the West Indies Birds of the West Indies () is a book containing exhaustive coverage of the 400+ species of birds found in the Caribbean Sea, excluding the ABC islands, and Trinidad and Tobago, which are considered bio-geographically as part of South America. Written by ornithologist James Bond, the book was first published as "A Field Guide to the Birds of the West Indies" in 1936 by the Academy of Natural Sciences as part of the "International Series". It has been reprinted several times since then, including as one of the Peterson Field Guides series (PFG 18), a