Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Books Books
" and the tooth became the most efficient weapon of attack. Still later, armor was discarded, and flight or concealment became the main methods of escape, and swift pursuit the principle of attack, while claws were added to teeth as assailing weapons. Finally,... "
Science - Page 333
1885
Full view - About this book

Proceedings of the Academy of Natural Sciences of Philadelphia, Volume 37

Academy of Natural Sciences of Philadelphia - 1886
...disk, and the like unindurated weapons. At a later period armor became generally adopted for defense, and the tooth became the most efficient weapon of...principle of attack, while claws were added to teeth aa assailing weapons. Finally mentality came into play, intelligence became the most efficient agent...
Full view - About this book

Annual Report of the Board of Regents of the Smithsonian Institution

Smithsonian Institution. Board of Regents - 1886 - 1034 pages
...weapon of attack, till Inter armor was discarded, and flight or concealment became the main method of escape, and swift pursuit the principle of attack,...became the most efficient agent both in attack and defense, and a special development of the mind began. The article is so condensed as to render it difficult...
Full view - About this book

Annual Report of the Board of Regents of the Smithsonian Institution, Part 1

Smithsonian Institution. Board of Regents - 1886 - 1026 pages
...weapon of attack, till later armor was .discarded, and flight or concealment became the main method of escape, and swift pursuit the principle of attack,...became the most efficient agent both in attack and defense, and a special development of the mind began. The article is so condensed as to render it difficult...
Full view - About this book

Annual Report of the Board of Regents of the Smithsonian Institution

Smithsonian Institution. Board of Regents - 1886
...weapon of attack, till later armor was discarded, and flight or concealment became the main method of escape, and swift pursuit the principle of attack,...became the most efficient agent both in attack and defense, and a special development of the mind began. The article is so condensed as to render it difficult...
Full view - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download EPUB
  5. Download PDF