Blood in human sperm

Semen is typically whitish-gray in color with a jelly-like texture. This can vary slightly depending on your genes, diet, and overall health. Read to find out what yellow, green, brown, and other colors may mean, when to seek treatment, and more. Your semen is made up of a variety of minerals, proteins, hormones, and enzymes that all contribute to the color and texture of your semen. The substances primarily responsible for this color are produced by your prostate gland.
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What fossilised skin, blood and sperm reveal about ancient life

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Semen - Wikipedia

This website uses cookies for user login, personalised content and statistics. By continuing to browse the site, you are agreeing to our use of cookies - if you wish to opt-out of non-essential cookies, you may do so below. The oldest evidence for preserved protein was unveiled today, with researchers in Canada, China and Taiwan reporting collagen — along with haematite from blood — within a million-year-old dinosaur bone in Nature Communications. Such finds are rare; when an animal dies, usually only the hardest substances in their body are fossilised if any become fossilised at all. So when researchers uncover a bit of ancient hair or skin, it's a big deal. A slice of foot bone from a human relative who died in Swartkrans Cave in South Africa shows an a ggressive type of cancer called osteosarcoma, according to researchers publishing in the South African Journal of Science last year.
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Nine Things You Never Knew About Sperm (PHOTOS)

How much do you know about sperm cells? You know guys make a lot of them--but how many? You know they're small--but how small? You know sperm cells swim their way to an egg cell--but with no brains, how in the heck do they know which way to go? See, men and women, there's a lot about sperm you just don't know.
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Semen , also known as seminal fluid , is an organic fluid that may contain spermatozoa. It is secreted by the gonads sexual glands and other sexual organs of male or hermaphroditic animals and can fertilize female ova. In humans, seminal fluid contains several components besides spermatozoa: proteolytic and other enzymes as well as fructose are elements of seminal fluid which promote the survival of spermatozoa, and provide a medium through which they can move or "swim". Semen is produced and originates from the seminal vesicle , which is located in the pelvis. The process that results in the discharge of semen is called ejaculation.
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