Tyack Peter
School of Biology, University of St. Andrews, St. Andrews, United Kingdom.
Elife. 2015 Apr 29;4:e07690. doi: 10.7554/eLife.07690.
When close to prey, porpoises actively widen their sonar beam, which may make it harder for the prey to escape.
当靠近猎物时,鼠海豚会主动加宽它们的声纳波束,这可能会使猎物更难逃脱。