Researchers Haven't Found A Single Endangered Right Whale Calf Yet This Season
"The right whales are at a point where more are dying than are being born," biologist Clay George says. "That's just not sustainable long-term."
Đọc tiếp trên NPR
February 28, 2018 at 09:00PM
Environment
Thứ Tư, 28 tháng 2, 2018
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