城市里的小麻雀、珠颈斑鸠为什么不怕人？
Why aren't city sparrows and collared doves afraid of people?
它们在城市里长大，发现人类通常不伤害它们，还常在花坛、食堂边找到种子和面包屑，于是慢慢把城市当成了家。
Born in the city, they learn people usually don't hurt them and find seeds and crumbs near gardens and cafés, so they slowly made the city their home.
难度 入门 · 适合 幼儿(3-6)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
左玉辉 主编,《环境学》第2版,高等教育出版社,2009
Zuo Yuhui ed., Environmental Science, 2nd ed., Higher Education Press, 2009
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787040283327（按标识回读: 环境学）
#城市鸟类 #适应 #麻雀
为什么公园里要立“请勿投喂野生动物”的牌子？
Why do parks post 'please don't feed the wildlife' signs?
人喂的零食常不健康，会让动物生病、变胖、失去自己找食的能力，还可能聚太多而打架传播疾病。远远看着、不打扰，才是对小动物真正的友好。
Human snacks are often unhealthy, making animals sick, fat and unable to find their own food, and crowds can fight and spread disease. Watching from afar without disturbing is the truly kind thing.
难度 入门 · 适合 幼儿(3-6)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
左玉辉 主编,《环境学》第2版,高等教育出版社,2009
Zuo Yuhui ed., Environmental Science, 2nd ed., Higher Education Press, 2009
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787040283327（按标识回读: 环境学）
#勿投喂 #野生动物 #友好
松鼠为什么秋天忙着藏坚果？
Why do squirrels busily hide nuts in autumn?
它们在为冬天囤粮：把坚果埋进土里，记性好的能找回来吃；有些被忘记的还会发芽长成小树，松鼠其实也在帮森林播种。
They store food for winter, burying nuts and remembering many of the spots; forgotten ones can sprout into trees, so squirrels also help plant the forest.
难度 入门 · 适合 幼儿(3-6)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
左玉辉 主编,《环境学》第2版,高等教育出版社,2009
Zuo Yuhui ed., Environmental Science, 2nd ed., Higher Education Press, 2009
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787040283327（按标识回读: 环境学）
#松鼠 #储藏 #播种