Science Night July 12th

See how the quest to multiply has spawned a stunning array of unusual behaviors and adaptations on Big Pacific at 7 pm Wednesday. View forest penguins with a tenuous marriage and the secret rendezvous of great white sharks, and hear the tale of male pregnancy.

Follow the annual gathering of a thousand elephants in northern Kenya on Nature’s Great Race at 8 pm Wednesday. From magnificent bulls to vulnerable orphans, they face deadly threats from both predators and poachers.

On NOVA Mystery of Easter Island at 9 pm Wednesday a team of scientists and volunteers test a theory on how the ancient stone statues were moved, using a 15-ton replica.