00:04Dolphins are famously one of the most intelligent species on our planet, which is probably why the
00:08U.S. Navy have used them to keep an eye on U.S. nuclear stockpiles. They do this by training
00:12them to conduct undersea surveillance in clear mines, and part of that involves strapping
00:16cameras to the dolphin's heads, with the results providing some incredible new insights about the
00:21marine mammals. Experts say this new footage is changing the way we're understanding how
00:25the creatures feed and communicate, finding that while they hunt, they clicked with their
00:28echolocation ability the whole time, with the researchers noting as part of this study,
00:37quote, as dolphins hunted, they clicked almost constantly at intervals of 20 to 50 milliseconds,
00:42adding that when they approached their prey, the intervals of the clicks shortened into a buzz and
00:46then a squeal, with those sounds lingering until the prey was swallowed. However, the researchers
00:50also concluded the dolphins used sight to track down their meal, and the prey was more diverse
00:55than expected as well, with the researchers writing that the dolphins tracked down and consumed
00:59eight highly venomous sea snakes, showing no signs of illness afterwards.
