Land bridge
From Tardis Wiki, the free Doctor Who reference
A land bridge was a naturally-occurring bridge between two landmasses. During the Pliocene, land bridges linked Asia to Alaska. (PROSE: Prehistory Repeating Itself [+]Loading...["Prehistory Repeating Itself (feature)"]) During and prior to the Stone Age, Doggerland was an inhabited land bridge connected the British Isles to continental Europe. (PROSE: Time Traveller's Diary [+]Loading...["Time Traveller's Diary (novel)"])
