A facial reconstruction of Ava was made last year
Analysis of pollen found on pottery buried with a young woman more than 4,100 years ago has identified plants used for medicinal purposes.
The woman's bones, including a skull and teeth, were discovered at Achavanich in Caithness 30 years ago.
Known as "Ava", an abbreviation of Achavanich, she is the subject of a long-term research project managed by archaeologist Maya Hoole.
Ms Hoole said the presence of the pollen "raises interesting questions".
Last year, forensic artist Hew Morrison created a facial reconstruction of Ava.
Now the results of other research have been published.
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