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
Pictures from the commemoration marking the centenary of the Quintinshill rail disaster, which killed more than 200 people, is underway.
The 100th anniversary of Britain's worst rail disaster will be commemorated at a special service today.
A look ahead at the forecast for the Border region.