Creature
Fast Facts
Introducing you to extinct species.
THE SLOTH LEMUR/ ARCHAEOINDRIS
1. There were 4 species of sloth lemurs, Palaeopropithecidae. The largest being the gorilla sized Archaeoindris. 2. The sloth lemur was 4 feet 9 inches tall and weighed 330 - 530 pounds according to estimates based on fossils. 3. It gets its name because the skull and long curved finger bones were similar in shape to a sloth, but it was not related to sloths at all. 4. Its size seems to indicate that it lived mostly on the ground in the savanna, mixed forest environment it preferred, but its hip bones seem to indicate an arboreal (tree-dwelling) life style. 5. It is unclear when the sloth lemur went extinct. It could have been around 350 BC or closer to when the koala lemur disappeared around 1280 - 1420 AD. 6. Herbert F. Standing first described & named the giant sloth lemur in 1909 based on jaw fragments found in Ampasambazimba, the only place these subfossils have ever been found. 7. A complete skull was found in the same location by Charles Lamberton. 8. Although no hand or foot bones have been discovered to date, its arms were longer than its hind legs.
Extinction
Cometh
Facing the light at the end of the tunnel
EXTINCTION DATE
350 BC – 1420 AD
The reason for the demise of the Archaeoindris isn’t 100% clear. There is evidence that these giant sloth lemurs were hunted by humans who came to Madagascar around 350 BC, but were thought to be rare at the time. The cave painting in Andriamamelo Cave in western Madagascar clearly shows a man using two dogs to hunt a sloth lemur. Cut marks in bones found support this conclusion. As the human population on Madagascar continued to increase, so did the impact of people on this lemur. Charcoal deposits throughout the island show that people used fire to clear sections of forests. This use of fire would have caused destruction to the areas containing sloth lemurs and caused population fragmentation. Because all four sloth lemur species went extinct before the arrival of Europeans, no one knows for sure when these giant lemurs actually went extinct. It seems that the largest sloth lemur and the focus of this post, the Archaeoindris, went extinct first possibly even "Before Christ" (BC), it is unclear. I have chosen to include it with the other "recently extinct" creatures because the related koala lemur made it closer to recent times. Could the sloth lemur live in Madagascar today? Although Jurassic Park is fiction, scientists are working on several de-extinction projects. In fact, in 2003 scientists did bring back the extinct Pyrenean ibex, a type of wild goat, for 7 minutes before it died, showing de-extinction is possible. The sloth lemurs might be good candidates. Scientists would potentially use DNA from the skulls and bones found in caves. Madagascar is home to many unique animals today, most famously the lemurs and fossa. The biggest problem facing these animals is deforestation and forest fragmentation. In 2020, the Madagascar government launched a project to plant one million trees. The goal is to eventually plant 60 million new trees to connect the fragmented forests. Many projects like https://zahana.org/ are recruiting local people to raise and plant these trees. People who agree to plant trees and care for them are taught how to make better cook stoves which require less wood to use. The main use of trees in Madagascar is wood for cook stoves. Although Malagasy (people from Madagascar) value their unique wildlife and have many areas set aside as National Reserves, many animals are still taken from the wild and sold illegally. Madagascar ranks 10th in the world for poverty. In fact, 75 - 80% of the 26 million people there are living in poverty, making only $2 a day. The answers for how to protect endangered wildlife in Madagascar today are not simple. If the sloth lemur ever did make its way back to its native homeland, would it be able to survive?
COMING
SOON
The sloth lemur's Lazarus tale has yet to be written, but what adventures will await it when it returns to Madagascar? Stay tuned to find out.
More to Explore
All answers lead to more questions
VIDEOS & ADDITIONAL INFO
When Giant Lemurs Ruled Madagascar - PBS Video
Wild Kratts Explore Madagascar - Video
Madagascar video