Assertion: sperm whale's environment | /r/HasProperty | 19 million square kilometres
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text: Local estimates include 70,000 – 80,000 in the Antarctic, 8,000 in the tropical Pacific (although tropical waters are not the Orca’s preferred environment, the sheer size of this area, 19 million square kilometres, means there are thousands of Orcas), up to 2,000 off Japan, 1,500 off the cooler north-east Pacific and 1,500 off Norway.