Some animals, including salamanders, have the ability to regenerate even if their limbs are severed. Researchers have discovered that cartilage in human joints has regenerative capabilities similar to ...

Male and female reproductive systems allow human reproduction. Fertilisation occurs when a sperm and egg join to form an embryo. An embryo develops into an unborn baby in the uterus during pregnancy.

An ambitious plan to map all 37 trillion cells in the human body is transforming understanding of how our bodies work, scientists report. The received wisdom said we were built from around 200 types ...