Learn what makes Alaska so full of sealife.
In the frigidly cold environment of Alaska you would think that very little sealife would survive here. In fact, the very opposite is true. The primary reason for this is oxygen.
Cold water holds more oxygen than warm water. This oxygen is the foundation for life in this ecosystem. Oxygen makes these waters phenomenally rich with nutrients that allow bait fish and other food animals to flourish. This literally feeds the waters off Alaska and all of the West Coast of the United States as these nutrient rich waters move south with the ocean currents. A good example of how rich these waters are is to consider the Gray whale. The Gray whale migrates over a 1,000 miles each year to the comparatively warm and protected calving areas found in Baja California. They don't eat for months on this journey, preferring to wait for the abundant food sources found in Alaska to eat again.
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