It’s June, the rush of spring wildflowers is over, and now’s the time to look at ferns. There are more than 60 species in the state, some of them very rare, others in every county. They range in size ...

Fern-like bodies once covered the seafloor, some stretching as tall as a person. Yet for millions of years, the animal world barely seemed to budge.

The total value of an artist’s artworks sold at auction over a specific period. This metric reflects the artist’s overall market activity and demand in monetary terms. The middle value of all realized ...

Human Reproduction is a peer-reviewed scientific journal covering all aspects of human reproduction, including reproductive physiology and pathology, endocrinology, andrology, gonad function, ...

With their soft unfurling fronds, ferns are fabulous. In fact, we love them so much, we’ve filled our new Evolution Garden with them. But how much do you know about one of the earliest plants to ...

Testosterone also stimulates sperm production in the seminiferous tubules and activates the prostate gland and seminal vesicles to produce their secretions. The release of testosterone is controlled ...

Independent verification of data is a fundamental principle of scientific research across the disciplines. The self-correcting mechanisms of the scientific method depend on the ability of researchers ...

Most girls begin puberty between ages 8 and 14, with an average of 11. Girls develop more quickly than boys and most finish puberty within four years. Most boys begin puberty between ages 9 and 14, ...

Like mitosis, meiosis is a form of eukaryotic cell division. However, these two processes distribute genetic material among the resulting daughter cells in very different ways. Mitosis creates two ...

A species is a distinct group of organisms and the most basic unit used to measure life on Earth. However, there’s no single definition of a species, meaning this vital concept in biology can be ...