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Strategies & Market Trends : 2026 TeoTwawKi ... 2032 Darkest Interregnum -- Ignore unavailable to you. Want to Upgrade?

To: Horgad who wrote (116602)	2/23/2016 5:40:11 PM
From: koan	Respond to of 217774

That is an interesting question about the Narwhale. I looked up some information on the narwhale and the Arctic history and posted a couple links for you below. Apparently, the Arctic has been pretty much ice free several times over the last 30 million years. I still haven't figured out how long narwhale's have existed, but that will be my next investigation. In any event, I think they coexisted with killer whales in the past. One of the characteristics that they have, along with the Beluga whale, both of which belong to the same genus is that they can dive a mile and like the Beluga whale, do that several times a day. So as long as the killer whales don't catch them in a shallow area, it seems they could dive deep to get away from them. Another thing that I find interesting is that the polar bear evolved from the grizzly bear. And as the pack ice has been receding there seem to be increasing reports of polar bears and grizzly bears mating and they have viable offspring. I also have done some research over the years in the increase in salmon spawning up the Mackenzie River that drains into the Arctic Ocean. Apparently all five species are now regularly spawning up that River. As the water warms up there I would expect the salmon to continue to migrate in increasing numbers. I know the Atlantic and Pacific cod are starting to move into the Arctic. So the polar bears as the ice diminishes may just change their diet from seals to salmon. But who knows? They mention that in times past there were spruce forests on the Arctic plains. Anyway it's all very interesting. slate.com phenomena.nationalgeographic.com