yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Endangered River Dolphin Species’ Numbers On the Rise | National Geographic


2m read
·Nov 11, 2024

  • [Lindsay] Within the last couple of decades, this population has dramatically decreased in number. (camera clicks) There is one really close. (camera clicks) (gentle music)

  • They are incredibly challenging to study because when they do surface, they don't bring much of their bodies out of the water. So, it's difficult to identify individuals, and it's difficult to really discern what type of behavior is occurring. (gentle music)

  • [Lindsay] For photo identification of individual dolphins, for many, many species, we use the shape or the coloration that you find on the dorsal area, particularly the dorsal fin. The main cause of mortality for this species, previously, was entanglement in gillnets. The river guard program was put in place to remove the illegal gillnets which are being set on the dolphin sanctuary areas. So, the chances of dolphins becoming entangled in these nets, of course, are far less if they simply aren't there. (gentle music) (boat running)

  • [Lindsay] We're quite hopeful because we've seen a decrease in adult mortality, and there are several new calves in the last two years as well. The last population estimate was for 92 individual dolphins in the area, and that's an increase of 12 from the previous estimates. So, we're very hopeful that this population is now on the road to recovery.

  • [Lindsay] I think one of the most spectacular things about this particular population is the setting itself. They are such an integral part of the communities that live around the river. The people that live in the Mekong area rely entirely on the river habitat as do the dolphins. The dolphins and the humans, it's all part of one big system that's really clear to see. (gentle music)

More Articles

View All
Silicon Valley's Cargo Culting Problem
The idea that superficially copying Uber and copying the things that they said in interviews, pretending that you’re Travis, whatever, yes, doesn’t work. It’s just like wearing a black turtleneck does not make you Apple. Yeah, this is Michael Cyborg with…
Steve Jobs in Sweden, 1985 [HQ]
[Music] Glad to meet you. [Applause] The doors have been locked and all of you that don’t sign up to buy computers will stay here, and we will bring back the singers. I am extraordinarily pleased to be able to be here with you. This is one of my perso…
The Element That Could Kill Billions but Save Millions
Many warnings have been uttered by eminent men of science and by authorities in military strategy. None of them will say that the worst results are certain. What they do say is that these results are possible, and no one can be sure that they won’t be rea…
RC step response 3 of 3 example
In the last video, we worked out the step response of an RC circuit, and now we’re going to look at a real example. So, this is our answer. This is the step response, the total response to our circuit to a step input. What does this look like? So, I’m go…
Seagrass and the Ecosystem | When Sharks Attack
In 2019, the North Carolina coastline is in the grip of a disturbing string of shark attacks. Two different species, bowls and black tips, have attacked four swimmers in little more than six weeks. The cause is a mystery. The final piece of the puzzle mig…
Gordon Tries Fermented Fish | Gordon Ramsay: Uncharted
I’ve still got lots to learn, so I’m off to try a traditional Christmas dish that I hear tastes much better than it smells. Now trust me, I want to get the best of Christopher, and I’m up here to meet two guys who make this amazing delicacy that can only …