Do Penguins Have Knees?, An Imponderables Book, HarperCollins, David Feldman,General and world history,History, imponderables; penguins; pop culture; science; questions; books; questions and answers; physical; adult nonfiction; nonfiction; fact books; first edition; anthology; knowledge; history; comedy; science evolution biology behavior; favorites; trivia; curiosity; miscellanea; childhood; gifts; guide; secret; santa; miscellaneous; elephant; reference; non comics; humor; reviewed; funny gifts; white; no ficcion; essays; humour; dropped; secret santa gifts; kids; informational; funny stocking stuffers; stuffer; general; information; white elephant gifts; non fic; fun; funny; stocking; stocking stuffers for adults,, Imponderables Series, United States, en-UShttps://www.harpercollins.comimponderables; penguins; pop culture; science; questions; books; questions and answers; physical; adult nonfiction; nonfiction; fact books; first edition; anthology; knowledge; history; comedy; science evolution biology behavior; favorites; trivia; curiosity; miscellanea; childhood; gifts; guide; secret; santa; miscellaneous; elephant; reference; non comics; humor; reviewed; funny gifts; white; no ficcion; essays; humour; dropped; secret santa gifts; kids; informational; funny stocking stuffers; stuffer; general; information; white elephant gifts; non fic; fun; funny; stocking; stocking stuffers for adults, [BLURB],[CITY],,books, ebooks, biblet, Book2look