heartless, coldblooded killers. Conservation The bigeyed sixgill is listed as near threatened by the IUCN Red List. Based on what little is known of the species, these sharks are not suffering major declines to their population, but pressure is growing from deepwater fisheries. According to the International Shark Attack File, the bigeyed sixgill is harmless, as its natural environment is far from people, and no attacks on humans by the species have been reported. See also List of sharks Hexanchidae Hexanchiformes References External links FAO Species Catalogue Volume 4 Parts 1 and 2 Sharks of the World Hexanchus Fish described in 1962