The Sperm Bike - Home deliveries

Biological analyst Alan Dowden of the Seattle Sperm Bank rides the Sperm Bike, a custom-designed, high-tech bicycle used to deliver donated sperm to fertility clinics.

Donor sperm is transported by medical technicians aboard the bike in liquid nitrogen cooled vacuum containers.

The first Sperm Bike was adopted by Seattle Sperm Bank's sibling company, the European Sperm Bank, in Cophenhagen.

Picture: REUTERS/Anthony Bolante