The bunyips presumably seen by witnesses, according to their descriptions, most commonly fit one of two categories: 60% of sightings resemble seals or swimming dogs, and 20% of sightings are of long-necked creatures with small heads; the remaining descriptions are ambiguous beyond categorization. The seal-dog variety is most often described as being between 4 and 6 feet long with a shaggy black or brown coat. According to reports, these bunyips have round heads resembling a bulldog, prominent ears, no tail, and whiskers like a seal or otter. The long-necked variety is allegedly between 5 and 15 feet long, and is said to have black or brown fur, large ears, small tusks, a head like a horse or emu, an elongated, maned neck about three feet long and with many folds of skin, and a horse-like tail. The bunyip has been described by natives as amphibious, nocturnal, and inhabiting lakes, rivers, and swamps. Bunyips, according to Aborigines, can swim swiftly with fins or flippers, have a loud, roaring call, and feed on crayfish, though some legends portray them as bloodthirsty predators of humans, particularly women and children. Bunyip eggs are allegedly laid in platypus nests.