An island in the Mediterranean

A land bridge connecting Britain to Europe

A mythical city lost to the sea

A mountain range submerged by glaciers

Underwater archaeology is difficult and costly

Political restrictions on research

Hostile local wildlife

Lack of historical records

Birch, Pine, Oak, and Hazel

Maple, Cedar, Spruce, and Fir

Palm, Cypress, Redwood, and Elm

Willow, Ash, Beech, and Alder

They built boats to live on water

They adapted their diet to include more freshwater resources

They migrated to higher ground

They constructed sea walls

A volcanic eruption that created new land

A tsunami that accelerated the submergence of Doggerland

A drought that dried up the rivers

An earthquake that split the landmass