We’re wrapping up September with more than just the arrival of Slothtober. This month has been full of activity, including the launch of our fundraiser to begin construction on the future Sloth HQ, a long-anticipated expedition across the country, and important workshops to strengthen the foundation of our conservation work. But first, we have an invitation for you.

Let’s start with the good news – we’ve officially survived the rainy season here on the Caribbean coast! It’s been a wild one, with endless storms, flooded trails, and plenty of wet socks, but we clung on (and so did the sloths). Now, let’s dive into what Team Sloth has been up to this month in our never-ending mission to make the world a safer place for sloths.

Month number 7 is officially in the books, and what a ride it’s been. Between new research, new bridges, multiple flat tires (sigh), and a life-changing auction, July was anything but slow. We’ve had big wins, small setbacks, and some long-awaited dreams finally starting to take shape.

If there’s one thing fieldwork teaches you, it’s that nothing ever goes entirely to plan, and that’s exactly what makes it exciting.

We don’t know how many sloths there are.
We don’t even know how many there should be.
And that’s a problem.

We have somehow reached the halfway point of 2025. The world beyond the rainforest feels loud, fast, and overwhelming these days – but here, under the canopy, the sloths are still sleeping quietly, tucked into the treetops.

José Pablo Guzmán García is our sloth scientist in charge of the Urban Sloth Project (USP)and is also involved in other research initiatives, such as the Great Sloth Census.

What 35 million years of evolution reveal about resilience, extinction, and the role of humans.

Sloths are masters of camouflage, blending seamlessly into the dense rainforest canopy to avoid predators – and, unfortunately, researchers.

Welcome to the fifth Tales from the Jungle of the year – and this one’s packed. Some of it is good news. Some of it… let’s just say it builds character.

If you’ve been following our work, you might already know Deborah – a two-fingered sloth we’ve been tracking through the Urban Sloth Project for several years. 

Vanderhoeven, E.A., Florida, M., Cliffe, R.N., Guzmán, J., Notarnicola, J. and Kartzinel, T.R., 2025. Host specificity of gastrointestinal parasites in free-ranging sloths from Costa Rica. PeerJ, 13, p.e19408.

In 2019, wildlife photographer Andres Espinoza captured something astonishing in Manuel Antonio National Park: a wild adult male sloth carrying a baby.

It’s hard to believe we’re already heading into the fifth month of the year—while sloths may be slow, time certainly isn’t!

Today we celebrate books! April 23rd is International Book Day, in honor of two of the most important writers in history: William Shakespeare and Miguel de Cervantes.

It’s April 22nd, Earth Day, although we believe all days are Earth Day. We don’t want to write another blog about the importance of having a livable planet.

We’re thrilled to share that SloCo’s work, featuring Dr. Rebecca Cliffe and our Project Manager Tamara, is highlighted in the latest episode of In Her Nature, a PBS documentary series.

To celebrate the International Day of Human Spaceflight, held every April 12th, we're reaching for the stars with a little help from one of our most stellar supporters: Ponder E. Stine.

Last week, something truly extraordinary happened in the South Caribbean of Costa Rica: a three-fingered sloth baby with leucism was spotted! This is the first case ever recorded of its kind.

It’s been one of the rainiest months of the year so far, but soggy boots and muddy field kits didn’t slow us down one bit.