There are different reasons why one testicle may appear bigger than the other. If one of your testicles is slightly bigger than the other, don’t panic, this is completely normal for most men and boys.

Dominant male lemurs flexibly grow their testicles when other males are around, putting them in a better position to successfully mate. In many species, dominant males have larger testes than ...

Benjamin holds a Master's degree in anthropology from University College London and has previously worked in the fields of psychedelic neuroscience and mental health. Benjamin holds a Master's degree ...