They sleep together and Silva takes the monkey to the center each day on her bicycle, the baby snug in the wool bag.

NPR: Monkey-Mothering 24-Hour Chore For Colombian Woman

Inspired by the traffic that hummed through the intersection outside their Zurich flat, the Freitag brothers designed a courier bag made of old truck tarpaulins, used bicycle inner tubes and car seat belts.

BBC: The stranger side of Switzerland