1. Home & Garden

Ventricaria ventricosa

Ventricaria ventricosa

Ventricaria ventricosa

Photo by Keoki Stender
The macroalgae Ventricaria ventricosa is a dark green sphere up to 2 inches in diameter. Actually a single cell with many nuclei. It is found in warm seas worldwide.

©2012 About.com. All rights reserved.

A part of The New York Times Company.