
My name is Rebecca Cliffe and I am a PhD student researching sloths at the Sloth Sanctuary of Costa Rica. I spend my days chasing wild sloths through the rainforest for the Sloth Backpack Project and trying to develop a release program to give hand-reared orphans a second chance at a life in the wild.
Sunday, 13 February 2011
Sloth research fundraiser !!!
Saturday, 22 January 2011
January update
Poco:
Monday, 3 January 2011
A rollercoaster start to the New Year
The following day, we were surprised by the birth of twins! We had no idea the mother, Mocha, was pregnant so it came as a complete shock to find her giving birth at all - never mind to twins !! What is even more incredible is the fact that she is only just about 3 years old herself, which means she must have become pregnant at only around 2 !! All the literature claims that the two-fingered sloth only reaches sexual maturity at 3 - which is clearly not the case! Both the babies were incredibly well developed, weighing in at 315g and 325g. There is one boy and one girl, named Sebastian and Violet!
Unfortunately, because the mother was so young herself and had been hand raised in captivity, the birth of 2 babies was very stressful for her and she didn't react too well. She failed to bite through the umbilical cords so we had to cut them free then take the babies to properly finish the job. She didn't pass the placenta immediately and we had no idea whether to expect 1 or 2 ... but turns out when sloths have twins they only pass one ! We tried to reintroduce one of the twins to her, but she was so stressed she rejected it. They are now safe and warm in the incubator being fed goats milk every few hours! Here are some pictures ...
As if that wasn't enough drama for one day, we then had ANOTHER baby brought in. This one was much bigger though, probably around 11 months. It looks as though he may have been weaned from his mum a tiny bit too early, which meant that he sat in a bush next to a hotel for 5 days and didn't move. He is slowly starting to eat hibiscus flowers (sloth chocolate) from us but hopefully he will start accepting Almond leaves and can soon be released into the forest!
Wednesday, 29 December 2010
December and Christmas in Costa Rica!

Just before Christmas, we had a surprise birth here at the sanctuary! It's almost impossible to tell when a Sloth is pregnant, so it really was a surprise when one of the volunteers found a tiny new born baby in with Busby and Goldie in the morning. We try not to let the Sloths here mate because we can never release the baby so unfortunately it is another mouth that needs feeding! Sadly, the mother didn't bite off the umbilical cord properly so the baby needed stitches, after which, Goldie rejected him. So he is now being hand raised by Judy. We named him Jacque Noel after the volunteer who found him. Not all is well with this tiny baby though - he has developed a worrying habit of stopping breathing after every feed which means Judy has to literally resuscitate him every time. Fingers crossed he is ok!
About a week ago, a man brought us an adult 3 fingered sloth as well as a tiny 2 fingered baby. Sadly, the baby had been left on the ground for too long and died during the day. It was thought that the adult had been electrocuted, but after being examined she had no burns or obvious injuries. We tried to release her but she suddenly deteriorated and so we aren't sure what the problem is. We are keeping her under close observation though so hopefully she will be ok. Just to add to the baby boom, 2 days ago we had a small Choloepus baby brought to us whose mother had been attacked and killed by a dog. She seems to be doing ok though and so has joined the other babies in the incubators.
Finally, we had a small panic with Mateo eating his carrots a bit too fast. We thought he had fallen asleep while eating, but he had actually choked on his food! He had become quite unresponsive and our vet had to force his finger down his throat to dislodge the carrot! Within 10 mins he was right as rain, but now gets hand fed his carrots one by one to stop him getting too excited again!
Oh... just as I was typing that last sentance we had a little earthquake! Not very exciting for anyone else here except me :-)
Lots of love x
Saturday, 27 November 2010
Andrew Gray comes to visit!
So for those who don't know a massive amount about Sloths, they have a number of features that make them completely unique from other mammals. Firstly, they have a VERY low metabolic rate - it is thought that one meal takes up to a month to digest!! As well as this, they can't thermoregulate like other mammals; they act almost like reptiles and amphibians moving in and out of the sunlight to control their body temperature. In captivity they can't do this because they don't have any access to the sunshine - their enclosures are basically a uniform temperature.
So the idea we have come up with will basically involve me using 3 female Bradypus sloths, kept alone in standardised enclosures for 6 months. I will me carefully controlling everything myself including exactly what and how much they eat. I will be taking both the body temp's and the ambient temp every 4 hours for the full 6 months and will be able to compare these against each other. Along side this, the sloths will each be wearing a daily diary for the full time, recording exactly how long they spend active (I will then be able to compare this back to the temp...!)
The final piece in the puzzle will involve me monitoring the metabolic rate of each sloth using carmine red - so feeding them the die with one meal and recording the time until they give me some red poo - potentially up to a month! I will also be measuring humidity and rainfall levels throughout ... Sooo from all this I will be able to see how ambient temp, body temp, activity levels, humidity and rainfall affect the metabolic rate!
I hope for my final month here I will be able to head up to the new sanctuary in Monteverde where it is much cooler and compare how the sloths up there (that aren't naturally found there) are coping with the ones here! - exciting stuff!
Anyway I will collect some pics etc of the new enclosures and how the sloths are settling into them over the next few days and pop them up on here so you can see!
:-)
Monday, 22 November 2010
November happenings




Monday, 1 November 2010
babies and sloth wee
I got to try out the fancy new microscope yesterday... we found some strange white paste-ish stuff in the urine of some of the sloths so I had a look to see if I could shed any light on it. It looked a bit like a close up view of white goo. We have no real idea what it could be, possibly calcium deposits (Rabbits get something similar), but who knows. They seem fine and well in themselves so time will tell. I have added a delicious picture of the poo/wee sample and microscope too.