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![]() Science study, the researchers sought to understand why the salmon shark's heart continues to function when it is ice cold.] The shark heart slows down in the cold, just as our own heart would, ... But what sets it apart is where our heart would simply stop, the salmon shark keeps on ticking. |
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![]() globally, yet the movements and habitats of most species are unknown, |
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![]() in winter the surface waters, which are less salty, were so cold that the sharks spent more time in warmer, saltier waters below, ... When I glimpsed the sharks' radio positions from these frigid seas, I often wondered what it would be like to overwinter in the wilds of an Alaska fjord chasing herring in constant darkness. |
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