Mountain gorillas in Rwanda


This video says about itself:

25 September 2017

Follow along as National Geographic photographer Ronan Donovan hikes through Volcanoes National Park in northwestern Rwanda in search of Dian Fossey’s famed [mountain] gorillas.

Fuel efficient stoves reduce tree cutting in Rwanda forest: here.

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Dian Fossey on gorillas, video


This video says about itself:

Dian Fossey Narrates Her Life With Gorillas in This Vintage Footage | National Geographic

11 September 2017

The 1973 National Geographic film The Mountain Gorilla documented zoologist Dian Fossey’s study of and interaction with the great apes of Central Africa from 1967 to 1972.

Save gorillas in Nigeria, petition


This 2012 video is called Cross River Gorillas, Endangered, Caught on Camera.

From the Wildlife Conservation Society:

At any minute, bulldozers could plow through one of the last rainforests in Nigeria.

As the heavy machinery tears its way through thousands of acres of lush, ancient forest, they will demolish some of the only remaining habitat of the highly endangered Cross River gorilla.

There are just 300 Cross River gorillas left in the wild – they might not survive a blow like this.

Help protect the last Cross River gorillas: sign the petition to stop destructive superhighway construction.

For thousands of years, the Ekuri people have lived in and worked cooperatively to maintain this beautiful rainforest – one of the last remaining in densely populated Nigeria. But now Cross River State Governor Ben Ayade has plans to build a massive superhighway that would destroy this precious wild place.

Cutting through the heart of Cross River State, it would destroy a national park, adjoining forest reserves, indigenous communities, and vulnerable wildlife. What’s worse, the plans call for approximately 6 miles of “buffer” on either side.

To put this in perspective, the average Nigerian interstate highway has approximately 300 feet of buffer on either side. That means that a 12-mile swath of ancient forest, extending the entire length of the 160-mile highway – 100 times the usual area – will be bulldozed for absolutely no reason.

Governor Ayade is pushing hard for construction to start immediately but Nigeria’s federal government has the power to protect this land. Please, sign the petition to Nigeria’s President Buhari and help stop the Cross River State superhighway before it’s too late for this precious rainforest, the Ekuri people, and wildlife like gorillas, elephants, and chimpanzees.

I know you care about wildlife and wild places, which is why I’m writing you about this urgent crisis.

The superhighway would annihilate the habitat of hundreds of endangered and vulnerable species, including many found nowhere else on earth. And the livelihood of 180 indigenous communities will be completely destroyed. A powerful movement is building to stop it. The Ekuri Initiative has already organized the support of 253,000 people to take action to protect their forests – will you add your voice before it’s too late?

Thank you for all that you do to protect wildlife and wild places around the world.

Sincerely,

John F. Calvelli
Executive Vice President, Public Affairs
Wildlife Conservation Society

Irreplaceable – Cross River National Park, Nigeria. By BirdLife News, 8 Nov 2016: here.

Ray of hope for endangered Cross River Gorilla in West Africa Forest: here.

Rare Cross River gorilla still faces serious threat: here.

David Attenborough about gorillas, video


This BBC video from Britain says about itself:

Attenborough Talks About His Famous Gorilla Encounter – Attenborough at 90

11 May 2016

Sir David Attenborough remembers his groundbreaking series Life On Earth and that extraordinary moment where he got to interact with Gorillas.

Wild gorilla using tools, new discovery


This video from Uganda is called Touched by a Wild Mountain Gorilla (HD Version).

From the BBC:

Wild gorilla creates a food tool in ‘eureka’ moment

For the first time, a wild gorilla is seen using a tool to eat food

It’s a scene that would grace the opening of any Planet of the Apes movie.

But rather than being fiction, this is fact, and one that is new to science.

For the first time, a gorilla in the wild has been seen using a tool to acquire and eat food.

The young female gorilla watched another older male attempt to collect ants from a hole in the ground, only to see the ants bite his arm, scaring him away.

The female gorilla tried to put her own arm in the hole, and she too was bitten.

But instead of giving up, the young ape then had her very own ‘eureka’ moment.

She looked around for a suitable implement, and selected a piece of wood approximately 20 cm long, tapering from 2 cm wide at one end to 1 cm long at the other.

She then inserted the stick into the hole, withdrew it, and licked off ants clambering over it, avoiding being stung.

Other great apes have been seen to use tools in the wild, and captive gorillas have been known to fashion and use a range of tools in their enclosures.

But the incident is surprising because wild gorillas were, until now, rarely known to have created and used tools.

The only known examples are when a western lowland gorilla was documented using a stick to gauge the depth of water before crossing a waterway. Another was been seen using bamboo as a ladder for her young infant to climb up.

But until now wild gorillas have never been seen using implements to eat with.

Lisanga, a very clever ape

The use of the stick was witnessed by Dr Jean-Felix Kinani, the head veterinarian with Gorilla Doctors, an organisation of vets that works with wildlife authorities to monitor the health of wild gorillas.

He and colleagues were observing one of eight mountain gorilla groups habituated to humans in the Volcanoes National Park, in Rwanda.

Within the group live 23 gorillas, including three silverback males, a younger male, and seven adult females, as well as juvenile gorillas and infants.

The veterinarians saw a gorilla named Kigoma, the second ranking silverback in the group, insert his left hand in to a hole in the ground, attempting to catch driver ants to eat.

He quickly withdrew it, and ran from the hole, shaking his arm, presumably remove the biting ants, report Dr Felix and colleague Dr Dawn Zimmerman, who are both affiliated to the University of California, US.

All the time, a younger female, Lisanga, watched his actions, they report in the American Journal of Primatology.

She approached the hole and for approximately two minutes watched the ants enter and leave it.

She then put her own hand in the whole, suffering Kigoma’s fate.

Undeterred however, she found her tool, a broken branch lying some 2 m from the hole, and preceded to use it to dine on the ants.

Chimpanzees are well known to use tools in the wild, with different groups using different implements; some use sticks to dig out termites or to fish or dip for ants. They have even been seen using spears to hunt monkeys.

Wild orang-utans in Asia have spontaneously created hammers, probes and scrapers made of sticks.

And in captivity, gorillas have been seen using sticks as weapons, using coconut fibres as sponges, and logs as ladders.

Which begs the question, why don’t they in the wild?

One answer is that they do, but it goes unnoticed.

Another is that gorillas are observed more in captivity, making it more likely that scientists spot novel behaviours.

But it could also be that captive gorillas have less to do than their wild counterparts, so are more inclined to experiment to fill the time, Mike Cranfield, Director of Gorilla Doctors told BBC Earth.

Captive gorillas often have new objects placed in their enclosures to enrich their environments, providing more opportunity for them to be turned into tools.

“Lisanga is a curious gorilla,” explained Dr Kinani. “She is known to have an investigative personality.”

For example, one anecdotal report details her showing more than casual interest in a researcher’s bag, quietly approaching behind the researcher and attempting to take the bag away.

“This looks to be an idiosyncratic behaviour,” he adds, referring to her use of the stick to catch and eat ants.

No other gorillas witnessed Lisanga’s actions, so it is unlikely that they too will learn the same trick, developing a culture of stick use.

This time, at least.

Saving gorillas in 2014, video


This video says about itself:

Year-End Thank You 2014

The Dian Fossey Gorilla Fund International

17 December 2014

47 years later, we are still committed to saving gorillas. Featuring Fossey Fund staff from Atlanta, Musanze and Nkuba-Biruwe, we thank our supporters for making our work possible!