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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