Scientists found microplastics in fluids around human eggs and sperm. Plastics from cookware and packaging affect human ...

After struggling to get pregnant for nearly two decades, one couple has finally conceived with assistance from artificial ...

Human testicles are much smaller, in proportion, to some of our primate cousins. Evolution can tell us why. But the size of ...

The human body is a machine whose many parts - from the microscopic details of our cells to our limbs, eyes, liver and brain - have been assembled in fits and starts over the 4 billion years of our ...

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Human sperm can swim through surprisingly viscous fluids with ... Scanning electron micrograph of a sperm cell in a fallopian tube. (Science Photo Library/Canva) However, nature is chaotic, and not ...

After only five minutes of exposure to the parasite, 22.4% of sperm cells were beheaded. The number of decapitated sperm increased the longer they interacted with the parasites.

After only five minutes of exposure to the parasite, 22.4% of sperm cells were beheaded. The number of decapitated sperm increased the longer they interacted with the parasites.