Male broad-tailed hummingbirds sync speed, sound, and flashing colors in a 300-millisecond dive that dazzles females during ...

Male breast cancer is rare, but studies suggest it's more common — and more lethal — among veterans. Yet the Veterans Administration is making it harder for veterans with breast cancer to get care.

They’re traditionally portrayed as females, but it seems sex robots could soon also be available in male form. Matt McMullen, CEO of Realbotix, has revealed his ambitious plans to release a male sex ...

Ultrastructure expansion microscopy of murine male germ cells reveals the fine molecular structures of centrioles (shown in ...

produce and transport semen, which contains sperm release sperm into the female reproductive tract during sex make male sex hormones, such as testosterone Have you ever wondered what the different ...

In a new Ph.D. thesis from Lund University in Sweden, gender studies researcher Marco Bacio interviewed male sex workers in Sweden and Italy. What surprised him the most was that a majority of the sex ...

Darrell Anderson became the first male flight attendant for Frontier Airlines in the 1970s, a time when the role was predominantly female. He talks about the experience with a former colleague.

Despite scientific advances, birth control options for men remain limited to condoms or vasectomy. There are also wing-and-a-prayer options such as pulling out (withdrawal) and outercourse. Since half ...

Andropause is a natural age-related decline in testosterone and growth hormone levels in men. Several terminologies have been used to refer to andropause, including male menopause, male climacteric, ...

An icon in the shape of a lightning bolt. Impact Link Aside from having some obvious physical differences, male and female dogs aren't all that different. But, a dog's biological sex can sometimes ...

Every product was carefully curated by an Esquire editor. We may earn a commission from these links. Here’s how we test products and why you should trust us. Full-frontal male nudity is perhaps the ...