Information seeking in western lowland gorillas (Gorilla gorilla gorilla) - Learning & Behavior Many animals will seek information when they do not know the answer to a problem, suggesting that they monitor their knowledge state. In the classic “tubes task,” subjects are presented with a set of opaque tubes and either see (visible trials) or do not see (hidden trials) which tube holds a food reward on a given trial. Chimpanzees, bonobos, orangutans, and human children show information-seeking behavior on this task, looking into the tubes to find the reward more on hidden than on visible trials. However, evidence for information-seeking behavior in gorillas is limited. In Experiment 1, gorillas that were presented with a classic information-seeking tubes task showed performance patterns consistent with metacognitive behavior; they looked down tubes more on hidden than on visible trials, their accuracy on hidden trials on which they looked was higher than on hidden trials on which they did not look, and they primarily employed an appropriate search strategy when looking down the tubes. In Experiment 2, we decreased or increased the amount of effort required to look down the tubes by increasing or decreasing the height of the tubes, respectively. Gorillas were less likely to look in tubes on trials that required high effort, but continued to look more on hidden than on visible trials, indicating that their tendency to look was affected by both knowledge state and effort. Together these results provide strong evidence for logical, controlled information-seeking behavior by gorillas.

Want to learn about gorilla metacognition?
link.springer.com/article/10.3...

Check out the Animal Cognition Network for 80+ papers on gorillas and tamarins, and to sign up for the newsletter (link is in the bio)

#AnimalCognitionFunFacts #InternationalTamarinDay #WorldGorillaDay

Charging into the weekend! Thanks for making #worldgorilladay this week such a blast, we love our followers! #ourpatientsarewild #weekend #boss #lookatme #silverback #gorilla #mountaingorilla #endangeredspecies #wildlifeconservation #wildlifehealth #conservationmedicine #veterinarians #vetmed

Go Rilla go.
#WorldGorillaDay

World Gorilla Day logo

Happy (belated) #WorldGorillaDay everyone!!!
youtube.com/shorts/hV8Pu...

Save the Gorillas...

#WorldGorillaDay #kleineKunstklasse #artshare #penandink #art #ink #drawing #inkdrawing #inking

Wasservermalte Tintenzeichnung eines Gorillas im Porträt, nach rechts schauend.

Gestern war #WeltGorillaTag

Save the gorillas 🦍
#WorldGorillaDay
#kleineKunstklasse

painting of a gorilla head under a cereus flower (misspelled in title) against black background in the artist’s signature photorealistic style

For #WorldGorillaDay 🦍:
Lowell Nesbitt (USA, 1933-1993)
Cerens [Cereus] and #Gorilla, 1980
oil on canvas, 50.5 x 36 in.
www.mutualart.com/Artwork/Cere...

Close-up of me apparently asleep with my head resting on a giant cuddly gorilla whose arms are draped over my shoulders

#FMSPAD 24/9 A pillow: Making the most of #WorldGorillaDay #FMS_Pillow25

two gorillas are standing next to each other and one is holding another gorilla 's hand ALT: two gorillas are standing next to each other and one is holding another gorilla 's hand

celebrating World Gorilla Day with some monkey/ape/primate videos!! (mostly about gorillas)

come join me!

#vtuber #vtuberen #primatetuber #WorldGorillaDay #monke

www.twitch.tv/sikkasapient

What an amazing #WorldGorillaDay First, YOU help exceed our $25,000 match so the Berson-Murray family increases it by another $10,000. Today alone you’ve donated nearly $3,000 - think we can get to $5,000 by midnight? Every single gift is double. $10 = $20! Let’s do this: bit.ly/WGDMatch35

😂 there will be time for other bathing birds in the future Pixie, and it is #WorldGorillaDay so they do deserve to be shared and seen.

Save the Gorillas 🦍

#WorldGorillaDay
#kleineKunstklasse
##artwork #illustration #art #skyart #artist #Nature #wildlifeart #AnimalArt #wildlife

#Gorillas face threats from habitat loss, poaching, and disease. #Conservation efforts honor Dian Fossey’s legacy and protect these keystone species. Support science-based action today! #WorldGorillaDay #WildlifeConservation #GorillaProtection Photo: Charles J. Sharp

#Gorillas are the largest #primates, with robust builds, opposable thumbs, and expressive faces. They diverged from humans ~8–10 million years ago, offering insights into #hominid ancestry. #WorldGorillaDay #Evolution #Anthropology Photo: Tuxyso

a gorilla is sitting in the grass near a large rock ALT: a gorilla is sitting in the grass near a large rock

It’s #WorldGorillaDay! #Gorillas are our close relatives, sharing ~98% of our DNA. These gentle giants live in cohesive groups led by silverbacks and play key roles in forest #ecology. #Primatology #GreatApes #Conservation

Seeing as i noticed @felinedoggeous.bsky.social post about #WorldGorillaDay on X, i thought i would post some of the Dad (Gugas) & Lad (Kofi) Western Lowland Gorilla photos i took at @BelfastZoo

Kofi will be 4yrs old in October

#mammals #photography #EastCoastKin #naturephotography #ZooLife

Humans share 98.3% of our DNA with these intelligent, charismatic animals. Unfortunately, this iconic species is threatened by habitat destruction, disease, and poaching. Gorillas and the wild places they call home need us now. #WorldGorillaDay

Save the gorillas 🦍
.
#WorldGorillaDay
#kleineKunstklasse
#watercolor

Happy World Gorilla Day!

#worldgorilladay #worldgorilladay2025 #gorilla #ape #primate #sanfranciscozoo

🌍🐵 Happy #WorldGorillaDay! Gorillas are vital to forest health, but face threats like habitat loss & poaching. 💚 Support sanctuaries & conservation to help protect these gentle giants! 🌱🌳 #FTLOP #ForTheLoveOfPrimates #Conservation

World Gorilla Day 2025: Shrinking habitats, rising threats World Gorilla Day 2025 highlights both breakthroughs in gorilla research and urgent conservation challenges.

"On September 24, 2025, the world turns its attention to these remarkable creatures. World Gorilla Day is more than a date on the calendar. It is a reminder that one of our closest relatives is facing real dangers in the wild."
Amazing animals 🌎🗓️🦍🌴 #WorldGorillaDay #Conservation #Wildlife

It's #WorldGorillaDay, highlighting this primate which is endangered due to factors including habitat loss, disease and poaching.

This plate in Studia Zoologica (1856) by Anders Gustav Dahlbom (1806-1856), lists the species as Gorilla gina. As far as we know, this gorilla wasn't called Gina!

Happy #WorldGorillaDay!
Now that signing up to @ecoflixofficial is free, just type Gorilla in the search box and choose from lots of videos to celebrate what #DianFossey called 'the greatest of the great apes'.
Go to www.ecoflix.com have fun!
@gorilla_organization
@gracegorillas
@gorilladoctors

#worldgorilladay 🦍 #silverback #lowlandgorilla #photography

Please feel free to wish Edgar a happy World Gorilla Day, post-nap of course.
#edgarilla #gorillasuit #worldgorilladay

It’s #WorldGorillaDay 🦍—a reminder that protecting gorillas means protecting rainforests, biodiversity, and our planet’s future. Their survival is deeply tied to ours. Let’s stand for conservation and community. 💚🌍

Also, shout out to Master Toka Kusanagi on this #WorldGorillaDay, since if I want to incorporate the whole animal motif joke with (similar to Offline being compared to a hippo, which again, I don't see it), he'd be compared to a gorilla given his strongman build.

#OriginalCharacter #ShutUpShogo

I was just informed that it was #WorldGorillaDay, so...

Happy World Gorilla Day to Commander Gori aka Scotch from "The Neapolitan Boys"!

#OriginalCharacter #ShutUpShogo

🍌🦍X 狸蕉朋友X🍌🦍
DAY.110

🍌🦍🍌🦍🍌🦍
#每天畫一隻狸丸 #狸丸
#漫画 #イラスト #タヌキ
#WorldGorillaDay #世界ゴリラの日 #世界大猩猩日
#插畫 #插圖 #繪畫 #畫畫 #draw #drawing #オリジナル #オリジナルイラスト #オリジナルキャラクター #電繪 #イラスト #描いた #描いてみた #inktober #inktober2025