描述
Sharks have been called primitive creatures. although accurate in some ways, this description is misleading. Sharks first began to appear on earth about 400 million years ago. They roamed the seas 200 million years before dinosaurs walked on land, and beat humans on the scene by some 399 million years.
書籍詳情
格式
平裝書
頁數
40 頁
語言
英語
已出版
Oct 1, 1990
出版商
Blake Publishing, Incorporated
ISBN-10
0918303249
ISBN-13
9780918303240