害羞的含羞草

含羞草喜欢长在野草地上,只要手一碰、风一吹或是昆虫一碰,就会把叶子合上,为什么含羞草这么害羞呢?

Scientific common sense Taiwan, Cina Scientific Enlightenment Cinese Ricerca scientifica 3 7 6 5 4 8 Scienza Authorization Newtonino Esposizione botanica