Kleptoplasty*

Little Leaf Sheep**
(its 'face' looks a bit sheep-like,)
tiny*** attractive sea slug:
across its back are an array of leaf-like
Cerata protuberances –
green witth pink. purple or white tips.
Why are they green?
Well, it eats algae
and the chloroplasts
(the algae's little cell organelles
where sugar is manufactured
using sunlight – photosynthesis)
are engulfed**** and stored in the cerata 
until they decay –
and so continue to make food for the little slug until they do.

*Kleptoplasty – stealing chloroplasts 

**Costasiella kuroshimae

***about 1cm max

****phagocytosis

for picture a picture of the pretty little creature:
google Costasiella kuroshimae or
https://en.wikipedia.org/wiki/Costasiella_kuroshimae

[IP: an animal]