Project Noah

Project Noah is a tool to explore and document wildlife and a platform to harness the power of citizen scientists everywhere.

Join Project Noah Today

Giant River Otter

Pteronura brasiliensis


The Giant Otter or Giant River Otter is one of the most endangered species of South American mammals. I photographed this individual along the Cuiaba River in the northern Pantanal. It was enjoying its meal of a freshly caught fish and squealing with delight - these social animals are very noisy.


Neotropical forested rivers

No species ID suggestions

28 Comments (1–25)

Beautiful !

Wonderful spotting and fantastic photograph, Is as if I was there myself, thank you so much for sharing, AdamRiley

patty 5 years ago

Great picture and spotting Adam; I guess they must feed well to maintain their name....

DDO 5 years ago

awesome ariranha picture

great pic!

Joshua Asel
Joshua Asel 5 years ago

Fantastic spotting and capture! keep it up man!

EmilieChich 5 years ago

Great spotting, great photo!

zapabio 5 years ago

que foto animal!!!!!!!

você minha a missão que crie só com mamíferos do Brasil? coloca essa foto lá! Obrigado

Have you seen my new mission with mammals from Brazil? enter it! Thanks

Hermosa fotografía!

achmmad 6 years ago

Gorgeous spotting and information!

Saarbrigger 6 years ago

Grest shot!

Fantastic photo.

bayucca 6 years ago

Excellent capture!!

AnjaliAnantharam 6 years ago

Beautiful spotting !

lmdang 6 years ago

Fantastic spotting & picture. You are so lucky, we looked for 3 days (near Puerto Maldonado) and didn't get remotely close to them.

HeatherMiller 6 years ago

ok, this one should definitely get looked at for a spotting of the day or week...your image quality is fabulous and the subject matter is very neat. I love his little tongue licking his mouth. Very cool.

Elsa 6 years ago

Absolutely awesome!!

AdamRiley 6 years ago

Thanks for the positive comments - it was a fantastic sighting! Unfortunately I don't know the species of fish so can't help with that!

DanielePralong 6 years ago

Fantastic capture Adam!

Sergio Monteiro
Sergio Monteiro 6 years ago

From Wikipedia:

Members of the family Loricariidae are commonly referred to as suckermouth armoured catfishes, armoured catfish, 'plecos' or simply 'plecs'; a shortened form of the species name plecostomus.

These names are used practically interchangeably when referring to the Loricariidae. The name "Plecostomus" and its shortened forms have become synonymous with the Loricariidae in general, since Plecostomus plecostomus (now called Hypostomus plecostomus) was one of the first species imported into the fishkeeping hobby. This can cause some confusion as some unrelated fish may also be called plecostomus, such as the "Borneo Plecostomus", which are actually balitorid fishes.

auntnance123 6 years ago

Definitely a spotting of the day--it's wonderful.

BrandonBlount 6 years ago

I thought it looked like something in the "Plecostomus" family. :-D

HeatherMiller 6 years ago

future sotting of the day perhaps

Sergio Monteiro
Sergio Monteiro 6 years ago

The fish seems to be a "Cascudo", a Loricariidae, Order Siluriformes. That name means, in portuguese, "shelled", for its hard skin, covered with bony plates.

SeanWeekly 6 years ago

a piece of art, a wonderful spot and great capture!

Barão de Melgaço, MT, Brazil

Lat: -17.15, Long: -56.65

Spotted on Sep 28, 2010
Submitted on Oct 17, 2011

Related spottings

Giant otter Giant otter Giant Otter Giant River Otter

Nearby spottings

Jaguar Fuscus Jungle Frog Jaguar Jaguar