Costa Rica
Sloths turn survival of the fittest upside down
Sloths, the world's slowest mammal, have been around for 64 million years. Sharyn Alfonsi traveled to Costa Rica to learn more about how they've survived.
![Sloths turn survival of the fittest upside down](https://america.easybranches.com/uploads/news/2024/07/18367470.jpg)
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