[Vegetarian]
From ancient age people called dugong a mermaid. Its character is
calm but it has developed an organ like a spade to scoop and eat
bell ware (a kind of algae). Also the tail has propelling power
to get away rapidly in case of an emergency. Now the problem is
the environmental change by the sea pollution that causes the decrease
of the edible plant area. Can they keep on progressing faster than
this?
When can they be vegetarian?
動物進化ファイル
