The lack of trees on Orkney has meant that generations of people have relied upon driftwood and whalebone for building materials. Orkney’s Neolithic settlements had driftwood and whalebone roofs covered in turf over 5,000 years ago. Here’s a whalebone from a 50ft Sperm Whale washed onto one of Westray’s beaches. This one’s not much use for building but it’s still beautiful and fascinating to look at. I now just need to work out which bit of the whale it is.