They were 10 weeks in development and had been dehydrated for 20 years .
During the 1984 exhibition of freeze - dried sculptures in London , UK , Gibson was given two dehydrated human fetuses from an anatomy professor .
human fetuses were 10 weeks in development and had been dehydrated for 20 years .
During the 1984 exhibition of freeze - dried sculptures in London , UK , Gibson was given two dehydrated human fetuses from an anatomy professor .