鸡皮疙瘩–第 1 级
03-04-2024 15:00
鸡皮疙瘩是我们皮肤上的小疙瘩。它们会让我们的头发竖起来。
我们害怕或生气时会起鸡皮疙瘩。看恐怖电影或听喜欢的音乐时也会起鸡皮疙瘩。冷的时候也会起鸡皮疙瘩。
动物也会起鸡皮疙瘩。鸡皮疙瘩能保护它们的安全。动物看起来更大了。这种情况可以让它们免受捕食者的伤害。隆起的毛发或皮毛还能为动物保暖。
肾上腺素会引起鸡皮疙瘩。肾上腺素是人体内的一种化学物质。 它会使心跳加快。人体通常会在遇到危险时分泌肾上腺素。人在经历强烈情绪时会分泌更多的肾上腺素。
您可以在三级部分观看原始视频。
动物利用鸡皮疙瘩保护自己免受捕食者伤害的方式有哪些？
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