Chromatophore

High school (ages 12+)
Animals & Nature

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/chromatophore

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the developmental origin?Chromatophores are derived from multipotent neural crest cells during embryonic development
2. What are chromatophores and why do they change color?Chromatophores are special cells that hold pigments or reflect light, letting animals like fish, frogs, and octopuses change their skin color for camouflage, communication, or temperature control.
3. How do pigmentary chromatophores make color?Pigmentary cells such as xanthophores (yellow), erythrophores (red), melanophores (black/brown), and cyanophores (blue) contain molecules that absorb light, and melanophores can spread or cluster their melanin to change the shade.

Ectothermic Animals: Animals that rely on external sources of heat to regulate their body temperature.
Ontogeny: The development and evolution of an individual organism from embryo to adult.
Thin-Film Interference: An optical phenomenon where light waves reflect off different surfaces of a thin layer, creating iridescent colors.