where are they found?
In all major ocean basins, except the Bering Sea and the Arctic Ocean
Blue whale
The five blue whale subspecies recognized by the Society for Marine Mammalogy’s Committee on Taxonomy are distributed in all major ocean basins, except the Bering Sea and the Arctic Ocean, although blue whales have been sighted near the ice edge in the North Atlantic.

The distributions of the five subspecies of blue whale are outlined below. Some of these blue whale subspecies have been further divided by National Oceanic and Atmospheric Administration’s National Marine Fisheries Service, resulting in at least nine recognized management units, based largely on unique song types.

1. The northern subspecies, "B. m. musculus" is found in the North Pacific and North Atlantic, although given the geographic separation and genetic differences, populations in these two regions are unlikely to be closely linked.
what characteristics do all the organisms in the animal kingdom share Animals are eukaryotic, multicellular, heterotrophic, respire aerobically what is meant by the third feature? A heterotroph  is an organism that cannot produce its own food, instead taking nutrition from other sources of organic carbon, mainly plant or animal matter. can you give example of such species? All animals and fungi, ome bacteria and protists, and many parasitic plants. regarding the first one; how are they classified? Insecta, Pisces, Amphibia, Aves, and Mammalia. which is the largest of it? The blue whale and the smallest? Myxobolus shekel what is the size of the largest one? length of 29.9 meters
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Blue whale [SEP] Geographic range
The five blue whale subspecies recognized by the Society for Marine Mammalogy's Committee on Taxonomy are distributed in all major ocean basins, except the Bering Sea and the Arctic Ocean, although blue whales have been sighted near the ice edge in the North Atlantic. The distributions of the five subspecies of blue whale are outlined below. Some of these blue whale subspecies have been further divided by National Oceanic and Atmospheric Administration's National Marine Fisheries Service, resulting in at least nine recognized management units, based largely on unique song types. 1. The northern subspecies, "B. m. musculus" is found in the North Pacific and North Atlantic, although given the geographic separation and genetic differences, populations in these two regions are unlikely to be closely linked.