An ecoduct is a passage over a road or railway, where you lead over animals and existing flora to connect landscapes that have previously been separated.

In this case the E6.

- We have had cameras on the ecoduct since it was inaugurated and we have seen deer, wild boar, elk, fallow deer, hare, fox and badger.

Yes, almost all large and medium-sized mammals in the area, says Mattias Olsson, researcher in animals and infrastructure.

See which animals have crossed the ecoduct in the clip above.

The E6 that crosses Halladsåsen has previously been a barrier that primarily prevented wildlife in the area from moving freely between east and west.

- The ecoduct allows the animals to move freely between larger areas that have previously been cut off, says Annelie Rossander, environmental specialist at the Swedish Transport Administration.