A mounted skeleton of Prolagus sardus, or Sardinian Pika, a species of pika found on the islands of Sardinia, Corsica and other nearby Mediterranean islands. It likely went extinct on the two larger islands during Roman times, but the last populations were driven to extinction in the late 1700s or early 1800s. They went extinct largely due to the introduction of new preators and competing species to their island ecosystems, as well as the diseases introduced by those competing species.