Two replicas of mammoths are seen during the “Giganten Der Eizeit” exhibition opening on May 31, 2011 in St. Peter-Ording, Germany. Europes biggest ice age exhibition opens on 3rd of June. (Photo by Krafft Angerer/Getty Images)

A replica of an ice age lion is seen during the “Giganten Der Eizeit” exhibition opening on May 31, 2011 in St Peter-Ording, Germany. (Photo by Krafft Angerer/Getty Images)

A replica of a red deer is seen during the “Giganten Der Eizeit” exhibition opening on May 31, 2011 in St Peter-Ording, Germany. (Photo by Krafft Angerer/Getty Images)

A replica of a mammoth baby is seen during the “Giganten Der Eizeit” exhibition opening on May 31, 2011 in St Peter-Ording, Germany. (Photo by Krafft Angerer/Getty Images)

Two replicas of a saber-tooth tiger (L) and a saber-tooth cat (R) are seen during the “Giganten Der Eizeit” exhibition opening on May 31, 2011 in St Peter-Ording, Germany. (Photo by Krafft Angerer/Getty Images)