• A Sloth in Heat

    Female three-fingered sloths come into estrous, or heat, multiple times a year and boy, do they like to scream about it! When a female sloth is "in heat" and ready to breed she doesn't wait for the males to come to her, she actively encourages them with high-pitched screams. The males will then follow the sound of the screams until he finds her. However, if multiple suitors find her, they may fight each other until the strongest male wins the right to mate. Once decided, the female will let the male approach. In a matter of minutes, intercourse is finished. In some cases, a pair has been found to stay together in the same tree for a few days, sometimes mating again. In others, the male has left shortly after fulfilling his role. Both genders are promiscuous and are likely to mate again. The female three-fingered sloth's pregnancy will last 6-7 months (for two-fingered it is 10-11 months!) and typically only one baby is born, although on some occasions, twins have been reported. Not a lot is known about the courting and reproduction of sloths as it has only been recorded on rare occasions. Recently, our resident three-fingered sloth, Bella, was in heat and we were lucky enough to witness her mating calls, although we're not sure the neighbors would share the sentiment. By former intern Katie Grant | Read more articles like this one by subscribing to our newsletter! 


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  • The Sloth Journal’s

    Ringo, Male Two-Fingered Sloth Age: At least 7 months Current Weight: 1.1 kg Place of Origin: Puriscal Nicknames: Sonic, Wristwatch, Sniffles Special Talents: Clinging to his caretakers, casually doing the splits Ringo is one of the youngest sloths in the high school group. He frequently hangs on to Latte while happily watching over the other sloths as she navigates through the climbing frame. As a youngster, Ringo used to be scared of everything, nervously sniffling when isolated from his larger friends or when being picked up by one of the nannies. In fact, Ringo’s caretakers can attach him onto any part of their body and walk around as if baby sloths were the latest fashion accessory. Now, Ringo’s caretakers speculate that he may be going through sloth puberty. Ringo seems to regularly pick fights with the other sloth kids on the chairs, biting whoever dares to wake him up or steal his spot on Latte. Ringo may not be the biggest of the high school kids, but his resemblance to a hedgehog could land him a gig digging around in soil looking for earthworms.   You can symbolically adopt Ringo and his pals by visiting our Adoption Program! Happy #SlothSunday!     By intern Ana Maria 


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