Las Oncas

Las Oncas Working for the conservation of jaguars and their habitat in Costa Rica.
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NEW CAMERA TRAPS DEPLOYED! 🎥🐆🇨🇷Every expedition is so much more than just installing camera traps. It is breathtaking la...
13/02/2026

NEW CAMERA TRAPS DEPLOYED! 🎥🐆🇨🇷

Every expedition is so much more than just installing camera traps. It is breathtaking landscapes, unexpected wildlife encounters, long hours under the rain, in the mud, carrying heavy gear through the Costa Rica wilderness. It is the sweat, the detours, the setbacks, and the teamwork it takes to explore all day just to install a single camera. During this expedition, we crossed path with species such as the precious metal scarab (Pelidnota virescens), the marathusa owlet moth (Neopreptos marathusa), the black tailed worm snake (Geophis talamancae), and the cacomistle (Bassariscus sumichrasti). And those oval green fruits with striking pink bracts are nothing other than wild passion fruits growing deep in the forest! 🪲🦝🐛🍈🐍

Our explorations take us across very different regions, and when we work in the Talamanca Mountain Range, the scale is overwhelming. This vast territory stretches across several protected areas and includes the largest national park in the country, La Amistad International Park. High elevation cloud forests unfold into endless ridges wrapped in mist, sheltering unique flora and fauna found nowhere else. It is easy to lose yourself in these landscapes, and no two expeditions are ever the same. ⛰️

Behind every image we capture, there is a full story. Extraordinary people, shared effort, unpredictable challenges, and unforgettable moments that turn demanding days in the forest into true adventures. None of this would be possible without the support of our sponsors who make this monitoring effort a reality.

If you or your company would like to sponsor a camera trap, simply send a private message to and we will explain how it works. Each new camera helps us explore new areas and potentially detect new jaguars! 🎥🐆🙌🏼

Follow and help us protect jaguars and the ecosystems they depend on. 🌳🐆🇨🇷

10/02/2026

NEW CAMERA TRAPS DEPLOYED! 🎥🐆🇨🇷

During a major expedition deep into the heart of the Talamanca Mountain Range in Costa Rica, we were finally able to deploy two new camera traps in a completely new area. 🎥🎥

Camera traps are the only reliable way to detect jaguars, and of course all the other elusive wildlife living in these dense forests, species that are extremely difficult to observe directly. Every new camera allows us to explore unknown zones and better understand how jaguars use these landscapes.

These new camera traps were sponsored by and . We are very grateful for their support, which allows us to continue deploying long-term monitoring equipment in remote areas of the Talamanca Mountain Range. Thanks to this support, we can expand our research, explore new zones, and improve our understanding of jaguars and the wildlife living in these forests. ⛰️🌴

We also sincerely thank for granting us the research permits and for facilitating all the legal processes that made this work possible in this remote part of the country. 💪🏼

This is a truly magical forest, and we are incredibly excited about the results that may come from this new monitoring effort.

If you or your company would like to sponsor a camera trap, simply send a private message to and we will explain how it works. Each new camera helps us explore new areas and potentially detect new jaguars! 🎥🐆🙌🏼

Follow and help us protect jaguars and the ecosystems they depend on. 🌳🐆🇨🇷

04/02/2026

• JAGI MADE IT TO THE NEWS! 🚨😱🎥🐆🖤🇨🇷

The videos of Jagi that we recently shared have gone widely viral. Across all platforms, they have reached millions of views and traveled far beyond the forests where he lives, throughout Costa Rica and even beyond its borders! 🤩🫶🏼

This visibility led me to give several interviews, including this one for , Costa Rica’s main national news channel. 📺🇨🇷

Sharing the images we capture through our camera trap network is not about chasing attention. It is about awareness and education. Social media is an incredible tool because it gives everyone access to these moments and reveals the extraordinary natural richness of Costa Rica’s forests. 🌱🌴

You can only want to protect what you know exists. That is why sharing these videos matters. Whether on social media or on television, the more people we reach, the stronger the impact for the conservation of these endangered animals. 🫶🏼🐆🇨🇷

Follow and help us protect jaguars and the ecosystems they depend on 🌳🐆🇨🇷

23/01/2026

• BLACK JAGUAAAARRRR ALERRRT! 🚨😱🎥🐆🖤🇨🇷

FOR THE FIRST TIME IN YEARS, WE HAVE OFFICIALLY DETECTED A SECOND BLACK JAGUAR IN THE TALAMANCA MOUNTAIN RANGE, AND THIS IS A HUGE MILESTONE FOR US! 🤯🖤🐆

Jaguars are already extremely rare animals. Black jaguars, also known as melanistic jaguars, are even rarer. Mysterious, elusive, almost legendary, they exist in Costa Rica only within the Talamanca Mountain Range. Despite their black coat, these jaguars still carry rosettes that can sometimes be seen depending on the light and angle, which is how we are able to identify and distinguish individuals.

After Negro, the first black jaguar we have detected in this region, together with we are incredibly excited to announce the detection of a second melanistic male. We initially referred to him as Macho 17 as a temporary name. Another organization detected him shortly before us and decided to name him Jagi.

He appears to be a strong, healthy, and robust male. Based on territory use and timing, it is very likely that he is the son of Negro, who was until now the only active melanistic male we had detected in this area. While this cannot be confirmed with certainty, the hypothesis makes a lot of sense.

As always, we do not share exact locations. Just know that this detection took place in the Talamanca Mountain Range, Costa Rica 🇨🇷

Huge thanks to for sponsoring these camera traps and making this detection possible! 🎥🐆

Want to support our work even further? You can adopt Jagi or any other jaguar we monitor and directly contribute to jaguar conservation. Just send us a DM and we will explain how it works. You will receive updates every time your jaguar is detected. 🫶🏼🐆🇨🇷

Follow and help us protect jaguars and the ecosystems they depend on 🌳🐆🇨🇷

The past month has been full of discoveries for the Las Oncas Conservation Reserve. Our fieldwork has revealed a rich di...
19/01/2026

The past month has been full of discoveries for the Las Oncas Conservation Reserve. Our fieldwork has revealed a rich diversity of wildlife, with many species recorded as we continue to document and better understand this newly protected area. Each new observation highlights the ecological value of the reserve and confirms the importance of its long term conservation. 🫶🏼🌴🇨🇷

At the same time, we have been creating and developing new trails, allowing access to different parts of the reserve while limiting environmental impact. This work has also led us to explore new zones of the reserve, where we have already made exciting discoveries, including previously unknown waterfalls hidden deep within the forest. As exploration continues, activity within keeps growing on many levels, from scientific monitoring to habitat management.

Again, thanks to everyone involved. The dedication, time, and support of all those contributing on the ground and behind the scenes are what make this conservation project possible. Together, we are giving life and protection to a territory whose full potential is only just beginning to reveal itself.

Species: Black-handed spider monkey (Ateles geoffroyi), Rosenberg’s gladiator tree frog (Boana rosenbergi), Spotted coffee snake (Ninia maculata), Scarlet macaws (Ara macao), Brown spotbelly (Coniophanes fissidens), Pacific forest toad (Incilius aucoinae), Central American white-faced capuchin (Cebus imitator), Yellow-throated toucan (Ramphastos ambiguus), Northern root teju (Loxopholis southi), Spectacled owl (Pulsatrix perspicillata), Water anole (Anolis aquaticus), Pug-nosed anole (Anolis capito), Wood colored salamander (Bolitoglossa lignicolor), Terciopelo (Bothrops asper), Rainforest rocket frog (Silverstoneia flotator)

01/01/2026

🔥 HAPPY NEW YEAR! YOUR CHANCE TO NAME A JAGUAR IS HERE! 🐆🇨🇷

Big news from the Talamanca Mountain Range, Costa Rica! One of our female jaguars still doesn’t have an official name, and it’s time to change that. We’re opening the opportunity for our community to help us finally name her! 💪🏼🐆

She is a young female, beautiful, in excellent physical condition, and a great example of how jaguars thrive when their habitat is protected. Drop your name suggestions in the comments, we will choose the best one and make it official, a simple way to connect with our conservation work and become part of this jaguar’s history. 💛🙌🏼

Want to support our work even further? You can adopt this jaguar, or any other jaguar we monitor - and directly contribute to jaguar conservation. Just send us a DM and we’ll explain how it works. You’ll receive updates every time your jaguar is detected! 🫶🏼🐆🇨🇷

As always, we won’t share the exact location. Just know this detection took place in the Talamanca Mountain Range, Costa Rica 🇨🇷

Huge thanks to & for sponsoring these camera traps and making this detection possible! 🎥🐆

Follow and help us protect jaguars and the ecosystems they depend on! 🌳🐆🇨🇷

30/12/2025

GRISON ALEEEEEERT 🚨😍🦡🇨🇷

HOLD EVERYTHING - RARE DOUBLE SIGHTING! 🦡🦡

One of our sponsored camera traps has captured an incredible moment on the Osa Peninsula: two greater grisons (Galictis vittata) detected together on the same camera trap. 🎥✨

This marks only the third detection in more than 10 years of monitoring on the Osa Peninsula. The greater grison is an extremely elusive species, rarely seen and even more rarely documented, making this double detection especially valuable for our database of rare species. 💫🔥

As always, the exact location will not be shared, only that this occurred on the Osa Peninsula, Costa Rica 🇨🇷

Thanks to for sponsoring this camera trap! 🎥

Follow and share, jaguars (and all other wildlife!) need us to be their voice! 🐆🌴🇨🇷

28/12/2025

GRISON ALEEEEEERT 🚨😍🦨🇨🇷

HOLD EVERYTHING - RARE DOUBLE SIGHTING!

One of our sponsored camera traps has captured an incredible moment on the Osa Peninsula: two greater grisons (Galictis vittata) detected together on the same camera trap. 🎥✨

This marks only the third detection in more than 10 years of monitoring on the Osa Peninsula. The greater grison is an extremely elusive species, rarely seen and even more rarely documented, making this double detection especially valuable for our database of rare species. 💫🔥

As always, the exact location will not be shared, only that this occurred on the Osa Peninsula, Costa Rica 🇨🇷

Thanks to for sponsoring this camera trap! 🎥

Follow Las Oncas and share, jaguars (and all other wildlife!) need us to be their voice! 🐆🌴🇨🇷

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