For many Americans, Memorial Day marks a fun-filled long weekend and the unofficial start of summer. However, Memorial Day was created for a much more solemn purpose: commemorating the U.S. military ...

These include two African rhino species - black and white rhinos. The remaining three are Asian rhino species, which include greater one–horned, Sumatran and Javan rhinos. The Sumatran, Javan and ...

There are 36 species of marine dolphins - living in nearly all aquatic environments, including oceans, coastal, estuarine and freshwater - and in temperatures ranging from less than 0°C to more than ...