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变色龙变色，真的只是为了伪装吗？

Chameleons shift colors using specialized skin cells called chromatophores layered beneath transparent scales.
Iridophores—cells containing nanocrystals—reflect specific wavelengths by adjusting crystal spacing.
This structural color change works like a tunable mirror, producing vivid blues, greens, and whites without pigments.
Pigment cells (melanophores) underneath add brown, black, or red tones for fine-tuning and contrast.
Color shifts respond to mood, temperature, health, and social context—not just background matching.
Males brighten during courtship or territorial disputes, while stressed individuals may turn dark gray.
Cooler temperatures trigger darker hues to absorb more sunlight and warm up faster.
Some species even display UV-reflective patterns invisible to humans but clear to other chameleons.
Scientists mimic iridophore mechanics to design adaptive camouflage fabrics and anti-counterfeit security inks.
Despite myths, most chameleons change slowly—over minutes—not instantly like cartoon characters.

听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。

Iridophores—cells containing nanocrystals—reflect specific wavelengths by adjusting crystal spacing. 虹彩细胞含有纳米晶体，通过调节晶体间距来反射特定波长的光。
Despite myths, most chameleons change slowly—over minutes—not instantly like cartoon characters. 尽管存在误解，多数变色龙变色需数分钟，并非如卡通角色般瞬间完成。
Chameleons shift colors using specialized skin cells called chromatophores layered beneath transparent scales. 变色龙通过皮肤下透明鳞片下方的特化色素细胞（色素胞）改变体色。

这篇中文题目最接近哪一句？变色龙变色，真的只是为了伪装吗？一次学校运动会的通知一份超市购物清单

课文第一句的意思更接近？变色龙通过皮肤下透明鳞片下方的特化色素细胞（色素胞）改变体色。今天学校放假了。请把窗户打开。

这一课主要在讲什么？（看英文标题） How Do Chameleons Change Color Beyond Camouflage? How to cook noodles A maths worksheet

Iridophores—cells containing nanocrystals—reflect specific wavelengths by adjusting crystal spacing.

Iridophores—cells containing nanocrystals—reflect specific wavelengths by adjusting crystal spacing.

第一版：录下来、回听、再听标准音。系统打分以后再加。

用今天的表达，自己说一句。

例子：Iridophores—cells containing nanocrystals—reflect specific wavelengths by adjusting crystal spacing.