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 ...

If we look across the whole of the mammal branch of the tree of life, we find there are many groups of mammals that have ...

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 per cent 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.

If you are trying to get pregnant, it is reasonable to want to know whether sperm is still inside you after having sex. While it is possible to feel semen (the fluid carrying sperm) entering the ...