testis

In the cell, it binds to other DNA, leading to testis formation, according to the National Library of Medicine.

From Los Angeles Times ● Mar. 26, 2026

Four additional genes are active only in the testis and are essential for sperm production.

From Science Daily ● Mar. 20, 2026

"In humans, differently from other animal species and lower mammalians, testis are located outside of the abdomen. This contributes to the maintenance of an organ temperature 2º to 4° C below core body temperature."

From Salon ● Mar. 28, 2024

By employing advanced sequencing techniques, the researchers identified significant differences in DNA methylation across thousands of regions in both the brain and testis of the affected frogs.

From Science Daily ● Mar. 11, 2024

The seasonal histological changes occurring in the ovary, corpus luteum, and testis of the viviparous lizard, Xantusia vigilis.

From Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz by John M. Legler

There is an element of truth behind these claims - environmental pollutants and heating the testes can impact sperm quality.

From BBC ● Jul. 11, 2026

In the brain, sexual differentiation starts before birth and results from a combination of sex chromosomes in brain tissue, sex hormones produced by the testes or ovaries and the environment.

From Salon ● Apr. 22, 2025

Researchers found high levels of microplastics in human and dog testes.

From Los Angeles Times ● May 23, 2024

Over the past couple of decades researchers have found that long-distance signaling goes beyond a few glands and organs—the pancreas, thyroid, testes, and ovaries—that spill out familiar hormones such as insulin and testosterone.

From Science Magazine ● May 22, 2024

When young roosters were fed DDT, the testes made only 18 per cent of their normal growth; combs and wattles, dependent for their development upon the testicular hormone, were only a third the normal size.

From "Silent Spring" by Rachel Carson