Creature
Fast Facts
Introducing you to extinct species.
THE LITTLE SWAN
ISLAND HUTIA
1. The Little Swan Island hutia, Geocapromys thoracatus, was one of the six species of hutia found in the Caribbean Sea. 2. Naturalist Charles H. Townsend first observed this hutia on Little Swan Island which is 95 miles off the coast of Honduras. Townsend stated that the hutia was abundant in 1887. 2. It was a small guinea pig-like rodent with a grayish brown back and a lighter brown stomach. 3. Of the hutia, it was mid-sized with a length of 14.5 inches. 4. The Little Swan Island hutia had 8 - 10 mystacial vibrissae on both sides of its snout. These whiskers were 2 inches in length and helped it move when it emerged from its limestone caves. 5. There is no evidence that the Little Swan Island hutia ever lived on Greater Swan Island, which is only 1,600 feet away and has a more supportive environment for such a species. 6. They were seen eating wild vines and shrubs that grew from the limestone rocks on the island. 7. Even though the Little Swan Island hutia were “so quarrelsome” their ears were often scarred and bleeding, they had a very calm disposition toward people. 8. In 1938, a scientist named Moyne tried to begin a breeding colony with 12 Little Swan Island hutia in England, but they only survived for 3 years. 9. This hutia would give birth to one or two young at a time. 10. The Little Swan Island hutia probably went extinct by 1955 when Hurricane Janet ravaged the island. That event combined with a box of unwanted cats being released on the island in the late 1950’s drove this hutia species to extinction. 11. A survey of the island in 1960 failed to provide any specimens or evidence of the continued existence of the Little Swan Island hutia.
Extinction
Cometh
Facing the light at the end of the tunnel
EXTINCTION DATE
1955
The Little Swan Island hutia was endemic only to the smaller of the Swan Islands. There is no fossil evidence that this hutia ever lived on Greater Swan Island, even though the vegetation of that island could have supported them. Some scientists speculate it may have been a subspecies of the Jamaican hutia, but that has never been confirmed. In 1887, Charles H. Townsend first observed this species. He said they were abundant. Little Swan Island had little digable soil, so the hutias lived in limestone caves. Fishermen observed them eating wild vines and hiding in clumps of cacti. In 1938, Moyne tried to establish a breeding colony of Little Swan Island hutias in England. He observed them as having little fear of people or dogs. He did have some success breeding them, but within three years of his attempted colony, all 12 hutias succumbed to diseases, specifically pneumonia. He predicted that one event on Little Swan Island could lead to the extinction of the Little SWan Island hutia. That foreshadowed what happened as Hurricane Janet devastated the area in 1955. Someone deposited a box of unwanted cats on the island sometime in the late 1950’s. The cats would have taken a toll on any hurricane survivors. A survey of Little Swan Island in 1960 failed to uncover any scat or other signs that the hutia still remained on the island. 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 Little Swan Island hutia might be a good candidate. Several specimens have been collected since its discovery. Moyne’s failed colony of hutia have also been preserved in the British museums, so would provide more recent specimens. Could the Little Swan Island hutia make a comeback if it was introduced back onto Little Swan Island?
COMING
SOON
The Little Swan Island hutia's Lazarus Tale has yet to be written. Would it be able to thrive again in the Honduras if it did return?
More to Explore
All answers lead to more questions
A specimen of the Little Swan Island hutia at Harvard Museum of Natural History
Image from Wikipedia
VIDEOS & ADDITIONAL INFO
Facts about the Little Swan Island Hutia
A Research Article About the Little Swan Island Hutia
Little Swan Island on Extinction Timeline - Video