The Isle Royale wolf population was founded in the late 1940s, and it's been under close scientific observation ever since. Researchers had assumed that the wolves were completely cut off from their relatives on the mainland, but in 1997 one wolf crossed over to the island using an ice bridge, and his arrival may go a long way to keep the population genetically viable.2. And also from io9:
About 9,000 years ago, the Fuzhou Basin in southeastern China fell victim to rising sea levels, pushing underwater the marshy lands needed for rice farming. The marooned people there became seafarers, which eventually led to the colonization of Taiwan.3. An ARG at Valve.