https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (AP)—A vet hopes groundbreaking surgery has relieved the arthritic hip pain of a 13-year-old Siberian tiger at a Texas sanctuary. https://phys.org/news/2013-03-op-texas-tiger-arthritic-pain.html Plants & Animals Tue, 19 Mar 2013 11:10:54 EDT news282910246 (HealthDay) -- Pain may be the cause of sudden, unexplained aggression in dogs, a new study says. https://phys.org/news/2012-06-newly-aggressive-dogs-reacting-pain.html Plants & Animals Sat, 16 Jun 2012 12:42:11 EDT news259069326