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
Polish Society for the Protection of Birds Polish Society for the Protection of Birds Polish Society for the Protection of Birds, OTOP (from Polish name: Ogólnopolskie Towarzystwo Ochrony Ptaków) – Non-governmental organization set up in Poland in 1991. Among OTOP's tasks are preserving wild living birds, their nests, gathering information about them and study their life. Furthermore, OTOP popularize ornithology among people from various social groups and different ages. OTOP is the Polish partner to BirdLife International. When Gerard Sawicki was the president of society, he run the TV program "Ptakolub(birdlover)" transmitted on TVP1 at the end of the 20th century. The current president of society is