The researchers found that three-toed sloths can harbor more phoretic moths than their two-toed counterparts because of greater concentrations of inorganic nitrogen and higher algal biomass in their ...

The charismatic and slow three-toed sloth is just one of many animals species that Smithsonian scientists study, from within our vast collections to live animals at our research centers and National ...

WASHINGTON— The U.S. Fish and Wildlife Service today proposed protecting the pygmy three-toed sloth under the Endangered Species Act. The proposal responds to a 2013 petition filed after officials ...

When it comes to slow motion, some creatures have truly perfected the art of moving at a crawl. Among the top contenders are the three-toed sloth, the Galápagos tortoise, and the banana slug, each ...

Eleanor has an undergraduate degree in zoology from the University of Reading and a master’s in wildlife documentary production from the University of Salford. Eleanor has an undergraduate degree in ...