Sexual reproduction, which involves the fusion of male and female reproductive cells (gametes) to create a zygote in a process called fertilization is, in contrast to asexual reproduction, the primary method of reproduction for the vast majority of macroscopic organisms, including almost all eukaryotes (which includes animals and plants).
A reprodución sexual, que implica a fusión de células reprodutoras de machos e femias (gametos) para crear un cigoto nun proceso chamado fertilización é, a diferenza da reprodución asexual, o principal método de reprodución para a inmensa maioría dos organismos macroscópicos, incluíndo case todos os eucariotas (onde están incluídos animais e plantas).