Stentor water ballet

Stentor is a genus of protozoan that is found in stagnant freshwater lakes and slow moving streams. In this case they were found in a partly frozen, small lake near Berlin, Germany, by the end of December 2014. The microorganism is named for a Greek hero in the Trojan War, who was renowned for his loud voice, in an analogous way to the sound of a trumpet rising up over the sound of other instruments. The description is fitting the microorganism because the organism is shaped somewhat like a trumpet.

Stentor species that live individual are too small to be noticed. The species that form colonies are so extremely common that they can be

Prostate

The prostate gland is shaped like a donut, weighs about an ounce and is the size of a chestnut. It consists 30% muscular tissue and 70% glandular tissue.
The prostate gland is just below the bladder, behind the pubic bone and just in front of the rectum. The prostate wraps around the urethra, which is the tube that carries urine from the bladder to the penis.

The prostate helps to control the flow of urine. During sexual activity, the seminal vesicles that are attached to the prostate

A frozen realm

The agate is maybe the most well known form of chalcedony. It is composed of microcrystallized quartz, which during its crystallization can trap impurities inside it in a way that the optic features of