THE RAM ON ITS LAST LEGS. Share full article. Dec. 21, 1861. Credit... The New York Times Archives. See the article in its original context from December 21, 1861, Page 4 Buy Reprints.

The pogo-stick theory of walking Locomotion: All animals with legs move the same way. Even ants and elephants “are bouncing along” as though on pogo sticks, biologists say.