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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