A Scottish team of researchers analysed a tooth to work out its age.
Scottish government support has also gone to projects in Orkney, Shetland and Highlands.
The suspect was wearing heavy gloves, a scarf and a face-covering when he entered the premises.
The 15th edition of the music festival attracted more than 2,000 revellers on a sunny weekend.
A 24-year-old man was arrested and released pending further inquiries following the incident on Friday.
CalMac says the past few weeks were "immensely challenging" due to the number of boats out of action.
A change in ferries had led to the situation on Tiree.
Petrol purchases are being capped at £25 as fuel levels are running low.
Community-owned Animal Care Tiree has taken over the only practice on Tiree.
