In Which A Sea Slug Goes Green

Its kleptomania we knew before,

Elysia chlorotica's, that slug's,

Like other ocean dwellers -- only more

Is going on than just some bugs

Kidnapped and put to work within its gut!

It keeps the chloroplasts it eats intact

And making chlorophyll no matter what.

So like a plant -- and this is no mean act --

It feeds on sunlight as it swims along.

So while it still likes algae for a meal

Its need to do so isn't very strong

As long as there is light it needn't steal

Its energy from other life, although

It still does need to feed somewhat to grow.