Countryfile

A lighthouse that has become a centre for dolphin research

Hamza Yassin heads to the Cromarty Lighthouse Field Station at the edge of the Moray Firth, where scientists are tracking Scotland's resident bottlenose dolphins in the UK's longest-running study of its kind. As our seas face change, the findings are helping to build a picture of the wider health of our marine ecosystems. Plus, a look back through the archives, shining a light on conservation projects around the UK