A recent study by Stony Brook University postdoctoral fellow Mason Youngblood revealed the complex efficiency of whale ...

Ultrasonic sounds are high-frequency sound waves that exceed 20,000 hertz, a range far beyond what the human ear can detect.

These sounds are transmitted to the surrounding water by the bulbous oil-filled ... Acoustic testing was then done at three different sonar frequencies, 38, 70 and 120 kilohertz, which spans the range ...