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Grizzly bears, black bears, wolves, coyotes, cougars/ mountain lions,bobcats, wolverines, lynx, foxes, fishers and martens are the suite of carnivores that originally inhabited North America after the Pleistocene extinctions. This site invites research, commentary, point/counterpoint on that suite of native animals (predator and prey) that inhabited The Americas circa 1500-at the initial point of European exploration and subsequent colonization. Landscape ecology, journal accounts of explorers and frontiersmen, genetic evaluations of museum animals, peer reviewed 20th and 21st century research on various aspects of our "Wild America" as well as subjective commentary from expert and layman alike. All of the above being revealed and discussed with the underlying goal of one day seeing our Continent rewilded.....Where big enough swaths of open space exist with connective corridors to other large forest, meadow, mountain, valley, prairie, desert and chaparral wildlands.....Thereby enabling all of our historic fauna, including man, to live in a sustainable and healthy environment. - Blogger Rick

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Monday, December 18, 2017

Some more excellent photos of a Puma and a Lynx strolling down the same forest path clearing (September-Puma and December-Lynx),,,,,outside of Calgary, Canada.........At first glimpse, you can see how many folks could mistake the two 'cats' for being the same species..................However, there is no comparison in body size between these felids------"A typical Canada lynx stands some 46 to 56 centimetres [18 to 22 in.] at the shoulder, compared to a puma's 63 to 76 cm [25 to 30 in.]; a big tom lynx usually tops out in the vicinity of 18 kilograms [40 lbs.], while a female mountain lion(Puma) can weigh more than 45 kilograms [100 lbs.], with a male Puma ranging up to 200 pounds"........Lynx range farther north than Pumas due to their "snowshoe-like pawed feet providing Winter hunting advantages,,,,,,,,,The Bobcat, sympatric to the Lynx in dietary preference(hares, squirrels, the occasional deer), tends to be the more aggresive of the two cats in their northern USA and southern Canada doman, often pushing Lynx to the periphery of their shared territories

Stop us if you've heard this one: A lynx and a puma walk by the same trail camera...

Stop us if you've heard this one: A lynx and a puma walk by the same trail camera...
BY Ethan Shaw DECEMBER 18 2017
Some weeks back, we were marvelling at the size spectrum of four different kinds of Russian Far East felinesphotographed by trail cameras on the same pathway.
Now, we've got another virtual side-by-side to share: this time a North American one, courtesy of a camera trap that wildlife enthusiast Viv K. maintains in the Rocky Mountain foothills west of Calgary in Alberta, Canada.
A female puma – a successful mother Viv knows well from trail-cam snapshots over the years, distinctive for her lack of a black tail tip – wandered past the camera back in early September:

Then, on December 4th, a Canada lynx trod the very same ground, providing an interesting visual comparison of these two cousins

At first glance, the lynx and puma here look comparably sized, but there are a couple of things to keep in mind. First, we're looking at the mountain lion in svelte, late-summer pelage; the lynx, in turn, is swaddled in its plush winter coat, so some of its apparent heft is actually floof. And Canada lynx appear larger than they really are because of their disproportionately long legs – especially those almost jackrabbit-worthy hind limbs – and big feet: the equipment of a fine-tuned northern hunter.

That said, Viv's camera likely captured a magnificent, silver-grey cat on the bigger end of the lynx spectrum. (A typical Canada lynx stands some 46 to 56 centimetres [18 to 22 in.] at the shoulder, compared to a puma's 63 to 76 cm [25 to 30 in.]; a big tom lynx usually tops out in the vicinity of 18 kilograms [40 lbs.], while a female mountain lion can weigh more than 45 kilograms [100 lbs.].)
Its light, lanky frame and almost comically broad paws give the lynx – like its quintessential quarry, the snowshoe hare – notably low "foot loading": an estimation of how much pressure a critter applies to the snowpack and therefore how deeply it sinks. Thus the lynx can hunt amid deep, soft drifts that would bog down pumas, bobcats and coyotes, saddled as they are with higher foot loading. (Some evidence suggests the hard-packed snow of snowmobile trails may allow competing carnivores access to the lynx's deep-snow digs.)
Pumas are both potential competitors and predators of the lynx. Given the smaller cat's ability to exploit winter-scapes too arduous for pumas to effectively hunt in, competition between the two would presumably be higher in summer, and in areas with either shallow or scanty winter snows or a more crusted-over snowpack.
Canada lynx range farther north than any other American felid, the heart of their domain being the mighty boreal forest of Alaska and (surprise!) Canada. Most of their overlap with other cats falls in the southern reaches of their distribution: with bobcats in the lower fringe of the boreal realm and in the northern mixed-hardwood forests of the US Upper Midwest and Northeast, and with both bobcats and pumas in the high woods of the western mountains.
With a decent look at the cat in question, there's really no confusing a Canada lynx and a puma. It's a different story with a bobcat, however (which, after all, is a type of lynx):
The lynx appears all-around bigger than its more southerly (and usually more heavily spotted) relative, but, here again, that's often due to its taller, ganglier build, outsized paws, more pronounced ruff and longer ear tufts. The two wildcats are actually similar in mass: in fact, the burliest male bobcats, at 23 kilograms (50 lbs.) or more, may actually outweigh their lynx counterparts. And where they do cross paths, the feistier bobcat tends to hold the competitive edge.
A BOBCAT roaming a field in Virginia
For more pumas and lynx – and grizzlies, black bears, moose, foxes, white-tailed and mule deer, and other denizens of the Alberta hinterland – check out Viv K.'s Twitter feed!

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