 Radford and Nickell re-enacted their experiments and investigation for the Discovery Channel in 1995.Radford spent five years investigating the mysterious monster el chupacabra, and came to the conclusion that the monster sightings were inspired by the 1995 film "Species", and were aided and abetted by faulty eyewitness accounts, lack of forensic knowledge, and mass hysteria.His account of the investigation is detailed in his 2011 book "Tracking the Chupacabra