Cosmarium botrytis, a freshwater alga

More info:

The vast majority of these illustration plates are from a plant systematics wall chart series – the Dodel-Port Atlas – released between 1878 & 1883”


Waltzing Volvox, from the Goldstein Lab at the University of Cambridge

Volvox is a colonial green algae (more info at Wikipedia)

Check out more movies on their YouTube channel and lab website

(And someone else has uploaded a more colorful video of dancing volvox here:

Volvox, a colonial green algae (more info at Wikipedia)

From the Goldstein Lab, Department of Applied Mathematics and Theoretical Physics, University of Cambridge:

They do really, really cool research, as described by this awesome statement: 

When asked whether I am a theorist or an experimentalist, my reply is that I am a scientist. Our group seeks to understand fundamental principles that govern the behavior of nonequilibrium systems in physics and biology, using a combination of experiment and theory. This research is not easily described by a single, conventional academic label; rather, it involves the domains of condensed matter physics, physical chemistry, biological physics, fluid dynamics, applied mathematics, and geophysics.  I subscribe to Poincaré’s motivation: 

The scientist does not study nature because it is useful;

he studies it because he delights in it, and he delights in it because
it is beautiful. If nature were not beautiful, it would not be worth knowing, and if nature were not worth knowing, life would not be worth living.

I also believe that some of the best science is close to art, and that Glenn Gould captured this spirit when he said 

The purpose of art is not the release of a momentary ejection of adrenaline but rather the gradual,
 lifelong construction of a state of wonder and serenity.”

UMMM and they have a YouTube channel!

Volvox globator, a colonial green algae (more info at Wikipedia)

The vast majority of these illustration plates are from a plant systematics wall chart series – the Dodel-Port Atlas – released between 1878 & 1883”


Volvox, a colonial green algae

From Wikipedia

“Volvox is the most developed in a series of genera that form spherical colonies.[1] Each mature Volvox colony is composed of numerous flagellate cells similar to Chlamydomonas, up to 50,000 in total,[2] and embedded in the surface of a hollow sphere or coenobium containing an extracellular matrix[2] made of a gelatinous glycoprotein.[3] The cells swim in a coordinated fashion, with distinct anterior and posterior poles. The cells have eyespots, more developed near the anterior, which enable the colony to swim towards light. The individual algae in some species are interconnected by thin strands of cytoplasm, called protoplasmates.[4] They are known to demonstrate some individuality and working for the good of their colony, acting like one multicellular organism.”

Image 1Volvox aureus, by Dennis Kunkel (2002):

Image 2: From Wikipedia, by Frank Fox (; cc-by-sa

Image 3: From Wikipedia, cc-by-sa

Image 4: Life cycle of Volvox carteri:

Ceramium spp. and a bonus Callithamnion sp. (red algae)

Image 1: Source: Algaebase

Caption: Ceramium juliae, Morris Point, Stilbaai, South Africa. 31 Oct 2001. Herre Stegenga. © Herre Stegenga 

Image 2: Source: Algaebase

Caption: Ceramium mazatlanense. Hawaii; scale 300 µm. 15 Aug 2011. J.M. Huisman. © J.M. Huisman.

Image 3: Source: WoRMS (cc-by-nc-sa)

Caption: Ceramium pallidum

Description: microscope, location: Spain, Galicia, Coruña, Pantín’s beach, 2007
AuthorBárbara, Ignacio
JPG file – 1.22 MB – 1000 x 1350 pixels
added on 2008-03-19 – 356 views
WoRMS Taxa on this image: 
Ceramium pallidum (Nägeli ex Kützing) Maggs & Hommersand, 1993

Image 4: Ceramium ciliatum © C. Romero Zarco – Universidad de Sevilla, 2003

Image 5: Callithamnion sp., same source as Image 4