Work to re-build the Borders railway line is now underway, but while bridges are built and tracks are laid, construction workers need to think about protecting the local wildlife.
The track crosses over the River Tweed, which is home to otters, protected fish and a variety of flowers.
Jenny Longden has been visiting the site to find out what is being done to keep them safe:
More top news
The second of our special reports looks at the history of the Borders Railway - starting with the closure of the Waverley Line in 1969.
Predominantly dry over the coming few days with variable cloud & some sunshine. Cool nights but daytime temperatures recovering a little
The two boys robbed a Carlisle store earlier this year, after threatening the lone female shop assistant with a knife.