In the cold waters of the rivers in Canada and Alaska bear fish for salmon. Most often sockeye salmon and chinook salmon are on the menue. Due to the excessive amount of salmons, many bears, grizzly, black-bear, are attracted to the feast. All of the bears eat salmons. There is just one salmon that eats bears. At a maximum length of three meters it is especially fond of the young bears joining the feast. When these massive creatures jump up the falls to breed, it is a spectacular sight that attracts many wildlife photographers. Most bears avoid this giant, though, due to its impressive size and enormous strenght. Besides this, it has a nasty bite and can bite off a human limb with the biggest ease...
No, just kidding, this creature doesn't live today and doesn't hunt bears. Neither does it go to freshwater to breed, but stays in the sea its whole life. So now for real:
The hunter-salmon, Magnosalmo nerkoides, is a 2-3 meter long predatory relative of the Salmon that lives some 131 million years into the future (Palalom) in the oceans on the westcoast of North-America. It is related to and shares a common ancestor with the tuna-salmon [link]
. It also coexists with the tuna-salmon and the giant chevrotain-dolphin [link]
It is a formidable hunter, but it is prey too. When swimming in open waters, sometimes hunting other big fish, like the smaller species of tuna-salmons (which are faster, though), it sometimes ends up as the dinner of a giant chevrotain-dolphin. The tuna-salmons often escape as they are usually too fast for this enormous predator. The hunter-salmon is less fast than the tuna-salmon, but as the giant chevrotian-dolphin usually attacks from below, it becomes prey, due to its less active lifestyle and lower reaction-speed.
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