Parasite, zombie, leech—these words are often used to describe people in unkind ways. Many of us recoil when ticks, tapeworms ...

The oval-shaped body belongs to a marine flatworm, a group of invertebrates that can range in color from see-through to neon and seemingly glide along the bottom with hairlike protrusions all over ...

Scientists are sending mouse sperm to space. They want to see if mammals can reproduce there. The sperm is stored on the International Space Station. It will return to Earth in 2025. Researchers ...

Scientists uncover how genetic factors influence reproductive timing, aging, and health, shedding light on fertility trends and their impact on future generations. Study: Genetics of female and ...

Space poses numerous challenges to reproduction, especially for mammals. The absence of gravity could hinder proper embryonic development, affecting processes like limb formation and nervous system ...

A new study reveals corals must be within only a few meters of each other to successfully reproduce, leaving them vulnerable in a warming world. A new study reveals corals must be within only a ...

Most people don’t get excited about intestinal parasite eggs preserved in 500-year-old human feces. But Marissa Ledger isn't like most people.