In the late 1950s, only 440 humpback whales — or 1.6 percent of their onetime number — were swimming around the southwestern Atlantic Ocean. Thanks to whaling restrictions, these school bus-sized aquatic mammals have started to come back.
In the late 1950s, only 440 humpback whales — or 1.6 percent of their onetime number — were swimming around the southwestern Atlantic Ocean. Thanks to whaling restrictions, these school bus-sized aquatic mammals have started to come back.
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