Often dubbed the unicorns of the sea, narwhals are strange and beautiful creatures with long tusks protruding from their heads. Members of the population of more than 80,000 can weigh up to 4,200 ...
In the Black Sea it reproduced so prolifically that by 1989 it had reached densities of up to 11 per cubic foot of water. Fish couldn’t compete with the jellies for food—sea walnuts eat as ...
Sea ice loss affects fisheries and subsistence hunters in the Arctic as well, since it prompts some fish species to move to different waters, and can deprive marine mammals of resting platforms. l.