Lần đầu phát hiện tiếng kêu như súng bắn của cá voi
Nhóm nghiên cứu từ Phòng thí nghiệm Greenpeace thuộc Đại học Exeter của Anh và Đại học Stellenbosch của Nam Phi đã dành 11 ngày để ghi lại âm thanh của cá voi lưng gù xung quanh ngọn núi ngầm Vema Seamount ở Đại Tây Dương, cách Nam Phi hàng trăm dặm về phía tây, và phát hiện một loại tiếng kêu hoàn toàn mới, theo nghiên cứu xuất bản trên tạp chí JASA Express Letters hôm 20/4.
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