Here Darwin observed crabs of monstrous size, with a structure which ena bled them to open the cocoanuts. 李贝.西洋科学史.
When cocoanuts are picked, however, they have still another covering-an outer rind which has a smooth surface. 佚名.神奇的知识之书.
Cocoanuts, as most of us know, have a thick, hard shell, with three black scars at one end. 佚名.神奇的知识之书.
The fibrous husks of cocoanuts are prepared in such a way as to form cellulose, which is used for the protection of warships, preventing the inflow of water through shot holes. 佚名.神奇的知识之书.
How are Cocoanuts Used to Help Our Warships? 佚名.神奇的知识之书.
He is a creature of immense strength and climbs palm trees in order to pick, and break open, the cocoanuts. 佚名.神奇的知识之书.