Canada lynx (Lynx canadensis) have really big feet. They are snowshoe hare specialists, and these big paws help them move over the snow, just like snowshoes.
They are not just boreal bobcats. They are derived from a much latter migration of Eurasian lynx into North America, while the bobcat likely evolved from endemic North American lynx. They adapted to living in snowy climates, and because snowshoe hares are often abundant, they became specialists at hunting them. Their numbers follow the boom and bust cycle of snowshoe hares throughout their range.
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As it turns out, Canada lynx are also vulnerable to predation by fishers here in Maine, which I found rather shocking.
https://www.google.com/amp/s/relay.nationalgeographic.com/proxy/distribution/public/amp/animals/2018/09/Weasel-like-fishers-prey-on-Canada-Lynx-in-Maine-news
Growing up in rural Maine, fishers have were always “known” to be infamous killers of domestic cats, a reputation I had kind of come to assume was largely hype. My reasoning was, would a fisher really want to make a habit of the comparatively risky practice of wrangling with other carnivores the same size as it vs just going after a squirrel? I mean, sure they kill porcupines, but a porcupine’s defenses are more passive than those of another carnivore. But then I saw a video on YouTube of a fisher apparently trying to kill a grey fox, and then read these accounts of fishers killing adult lynx. An old book on “Maine Wildlife” I have states fishers prey on raccoons as well, who are themselves known to be no slouches in a brawl. So perhaps I wasn’t giving fishers enough credit as intraguild predators. I’ve always gotten the impression that lynx are not particularly “tough” cats in terms of aggression and mental “resiliency” to stress, so I wonder how much of a factor that is in their susceptibility to fisher predation, especially when there seems to be no evidence the similarly sized (but more aggressive) bobcat is targeted by fishers in the same way.