Ovine pulmonary adenocarcinoma as an animal model for human lung cancer, because OPA is histologically similar to human adenocarcinoma in situ of the lung. Dolly the sheep, the first mammal successfully cloned from an adult somatic cell, was euthanized after it was confirmed that she had OPA. Ovine pulmonary adenocarcinoma Ovine pulmonary adenocarcinoma (OPA), also known as ovine pulmonary adenomatosis, or jaagsiekte, is a chronic and contagious disease of the lungs of sheep and goats. OPA is caused by a retrovirus called jaagsiekte sheep retrovirus (JSRV). The disease has a long incubation period, and therefore signs usually occur in adult animals (over 2
Animal Jam Although Animal Jam is primarily played online, the Animal Jam universe has been expanded to incorporate mobile devices such as smartphones, tablets, and iOS devices. The most popular Animal Jam mobile app is "Play Wild" which is a 3D version of the Animal Jam world. However, WildWorks has also developed other apps that are based on the Animal Jam game. Animal Jam was developed by WildWorks and it was launched on September 9, 2010. In 2011, Animal Jam had over 1 million registered players in the game. Later, in March 2013, the game had already achieved over 10 million players,