Michael Appleby, Author at New ÐÓ°ÉÔ­´´ Science news and science articles from New ÐÓ°ÉÔ­´´ Sat, 30 Mar 1991 00:00:00 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.2 242057827 Frustration on the factory farm: Animals kept in close confinement pace their cages or bite their bars because of frustration, not boredom. Changes in housing can reduce the problem /article/1822514-frustration-on-the-factory-farm-animals-kept-in-close-confinement-pace-their-cages-or-bite-their-bars-because-of-frustration-not-boredom-changes-in-housing-can-reduce-the-problem/?utm_campaign=RSS|NSNS&utm_content=currents&utm_medium=RSS&utm_source=NSNS Sat, 30 Mar 1991 00:00:00 +0000 http://mg12917626.200 1822514