伪装、警戒色与拟态

伪装、警戒色与拟态：昆虫如何通过躲藏或发出视觉信号来生存。竹节虫看起来像树枝，叶子虫看起来像树叶。黄蜂有警戒条纹；食蚜蝇模仿黄蜂，却无害。“你能找到它吗？”挑战。

Camouflage, warning colours, and mimicry: how insects survive by hiding or sending visual signals. Stick insects look like twigs, leaf insects look like leaves. Wasps have warning stripes; hoverflies mimic wasps but are harmless. The 'can you spot it?' challenge.

学习证据 / Evidence

• 举出至少两个昆虫伪装的例子，比如竹节虫像树枝、叶子虫像树叶。
• 解释为什么像黄蜂黄黑条纹这样鲜艳的警戒色能帮助昆虫生存。
• 描述拟态，说明像食蚜蝇这样无害的昆虫会模仿黄蜂这类危险昆虫，以骗过捕食者。

• Give at least two examples of insect camouflage such as stick insects resembling twigs or leaf insects resembling leaves
• Explain why bright warning colours like a wasp's yellow and black stripes help the insect survive
• Describe mimicry by explaining that a harmless insect like a hoverfly copies a dangerous one like a wasp to trick predators

评估问题 / Assessment

如果给{{name}}看竹节虫藏在树枝上或食蚜蝇假装成黄蜂的图片，{{name}}能解释为什么这些昆虫长成那样吗？

If you showed {{name}} pictures of stick insects hiding on branches or hoverflies pretending to be wasps, could they explain why those insects look the way they do?