00:00Dolphins are famously one of the most intelligent species on our planet, which is probably why
00:08the U.S. Navy have used them to keep an eye on U.S. nuclear stockpiles.
00:12They do this by training them to conduct undersea surveillance in clear mines, and part of that
00:16involves strapping cameras to the dolphins' heads, with the results providing some incredible
00:20new insights about the marine mammals.
00:22Experts say this new footage is changing the way we're understanding how the creatures
00:25feed and communicate, finding that while they hunt, they clicked with their echolocation
00:29ability the whole time, with the researchers noting as part of this study, quote,
00:37As dolphins hunted, they clicked almost constantly at intervals of 20 to 50 milliseconds, adding
00:42that when they approached their prey, the intervals of the clicks shortened into a buzz
00:46and then a squeal, with those sounds lingering until the prey was swallowed.
00:49However, the researchers also concluded the dolphins used sight to track down their meal,
00:54and the prey was more diverse than expected as well, with the researchers writing that
00:57the dolphins tracked down and consumed eight highly venomous sea snakes, showing no signs
01:02of illness afterwards.
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