Meet Denny: Sloth School's Star Student
A DIFFICULT BEGINNING FOR DENNY THE THREE-FINGERED ORPHANED SLOTH
On October 3rd, a tiny orphaned sloth arrived at The Sloth Institute with a very big journey ahead of him.
Meet Denny, our November Sloth-of-the-Month!
Denny was found in Manuel Antonio, Costa Rica, high up on a branch, crying, with his deceased mother nearby. At just a few weeks old, he was far too young to survive independently in the rainforest. When he arrived at The Sloth Institute, he weighed only 395 grams.
During his initial examination, our team discovered numerous sloth moths living in his fur. This further indicated that Denny was still very young and had likely been with his mother shortly before being found. Without his mother’s care, warmth, and protection, Denny needed immediate specialized attention to have a chance at survival.
Our team welcomed Denny into the Sloth Schooling Program, where his rehabilitation journey began.
Raising an orphaned baby sloth requires much more than simply providing food and shelter. In the wild, baby sloths depend on their mothers for nourishment, warmth, protection, and guidance as they develop the skills they will eventually need to survive independently.
When a baby arrives at The Sloth Institute, we must carefully recreate some of the nutritional support they would naturally receive from their mother while allowing them to develop at their own pace.
Our team has spent considerable time researching the nutritional requirements of growing sloths, including appropriate feeding amounts, feeding frequency, and formula preparation. Because we can’t obtain sloth milk, we use goat milk as the closest available substitute.
We also incorporate Pedialyte into the milk mixture to provide additional hydration support. We carefully calculate every feeding based on the individual sloth’s weight and developmental stage. As babies grow, their nutritional needs change, meaning their feeding schedules and amounts must be adjusted along the way. For a baby as small as Denny, these details make an enormous difference!
A STAR STUDENT FROM DAY ONE!
Arriving at a rehabilitation facility can be an overwhelming experience for an orphaned sloth. Suddenly, they are without their mother and surrounded by unfamiliar people, smells, sounds, and a completely foreign environment.
Many babies need time to adjust to their new environment and become comfortable with their milk mixture. Some are initially hesitant to eat, so our team needs patience and careful monitoring.
Denny, however, had other plans! From his very first days at Sloth School, Denny took to his milk mixture immediately. While other babies might need a little encouragement, Denny was more than happy to enjoy his meals. He also began eating leaves almost right away!
In fact, Denny has quickly earned a reputation as one of the easiest patients in our Sloth Schooling Program. His teachers (Team Sloth!) have given him straight A’s across the board. He has an excellent appetite, has adjusted wonderfully to his feeding routine, and even has impressive bathroom habits!
We think it’s safe to say we have a little valedictorian on our hands.
GROWING STRONGER WITH EVERY DAY!
One of the most important parts of raising an orphaned baby sloth is monitoring their growth and development. Weight gain is an important indicator that a baby is receiving adequate nutrition and progressing through this early stage of rehabilitation.
When Denny first arrived, he weighed just 395 grams. Since then, he has gained nearly 300 grams! That’s a tremendous milestone for such a little sloth and a wonderful sign of his progress.
At this stage of the Sloth Schooling Program, Denny has three very important assignments: Drink milk. Eat leaves. Gain weight!
Although these may sound like simple tasks, they are essential building blocks for his future independence. As he continues to grow, Denny will gradually develop the strength and skills needed to transition to life in the rainforest.
THE ROAD TO SLOTH UNIVERSITY AND EVENTUAL 'GRADUATION'
While Denny is currently thriving at Sloth School, his journey is far from over. Our ultimate goal is not simply to raise healthy baby sloths, but to prepare them for a successful return to the wild. Rehabilitation is a carefully planned process that takes time, patience, and individualized care.
Each sloth develops differently, and graduation is based on their physical development, health, and ability to demonstrate the skills needed to survive independently. We never rush this process. A successful release means giving each sloth the best possible chance to live a healthy, independent life in the rainforest.
For now, Denny still has plenty of growing to do, but he is off to an incredible start. With every milk feeding, leafy meal, and gram gained, he is one step closer to his ultimate goal: graduating from Sloth School and returning to the wild where he belongs.
We are so proud of our little star student and cannot wait to see what the next chapter holds for him!

Help Sloths Like Denny Have a Second Chance
Every orphaned sloth deserves the opportunity to grow up wild and free. But providing the specialized nutrition, veterinary care, monitoring, and rehabilitation that babies like Denny need takes time, expertise, and resources.
Through our Adopt-A-Sloth program, you can become part of a rescued sloth's journey.
Symbolic adoptions help provide essential food, medical care, enrichment, and safe shelter for orphaned and injured sloths as they work toward returning to the rainforest.
Want to help Denny and other sloths like him? Become a Sloth Advocate and help us give them a second chance at life in the wild!













