Humans typically reproduce through sexual reproduction ... join (fuse), and a single new cell is formed. This is called fertilisation. There are two types of fertilisation. External fertilisation ...

Take the evolution of sex, for instance. To make the move from asexual to sexual reproduction, nature took a system by which parent cells reproduced simply by dividing (asexual reproduction ...

In the intricate science of reproduction, the creation of offspring has long relied on the union of sperm and eggs, whether ...