When the top spotty fish in a tank disappears, the runner-up turns aggressive within minutes, rushing and nipping rivals ...

The experiments show that changes in iron levels can lead male mammalian embryos to develop female sex characteristics, regardless of their genetics.

Nishikigoi, better known as koi fish, are a well-known variety of the common carp. They are bright red and white and revered for their vibrance and grace. Even other animals, including their ...

The genes of male and female placentas have marked differences in how they are expressed, according to a study by researchers at the National Institutes of Health (NIH) and other institutions.

Follow these proven carp fishing techniques, best baits, and expert rigging tips to catch the biggest, hardest fighting fish in a pond near you.

If you've got a manual on USB ports or have watched any kind of video, you may have heard them referred to as Male or Female ports. Here's what that means.

Biological sex is not as simple as male or female Defining sex as a binary excludes many biological realities, scientists say ...

Trump's definition of 'male,' 'female' criticized by medical and legal experts President Trump issued an executive order limiting gender definitions on Monday.

Trump’s Definitions of “Male” and “Female” Are Nonsense Science With Staggering Ramifications “How can you so fully misunderstand basic human biology and then legislate about it?” ...

More say all-female social groups have a positive impact on women’s well-being than say this about all-male groups' impact on men.

Fly anglers are figuring out that carp is not a fish to look down your nose at. They are challenging, strong, accessible, and most importantly, flat out fun to catch on a fly rod.

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...