Many early suggestions by foreign zoologists implied they thought the loch was saltwater, which explains suggestions of sunfishes, whales, sharks and rays. The people who came up with these theories were not necessarily that familiar with the loch. There have been over 85 theories of what the Loch Ness monster is, ranging from the prosaic ( wind slicks, reflections, plant debris and boat wakes) to the zoological implausible (anacondas, killer whales and the ocean sunfish) to the frankly bonkers (ghost dinosaurs).