Adult Hoffmanns two-toed sloth (Choloepus hoffmanni) coastal mangroves, Panama, Central America Correction appended Jan. 23, 2014 Among the greatest mysteries of the tropical rainforest are the ...
New research painted a more accurate picture of the megafauna that spread widely around the Americas before they went extinct. By Jeanne Timmons Ground sloths emerged in South America tens of million ...