Sperm ususally swim toward the females egg, but these are mostly male sperm that are lost and are going in the wrong direction, and refuse to stop and ask for directions.
retrograde motion
what does retrograde mean
Venus and Uranus have retrograde rotation.There are other meanings of retrograde motion, but retrograde rotation fits the question best.
Venus and Uranus have retrograde rotation.
If you mean "retrograde rotation", they are Venus and Uranus.
Neptune's 7th moon Triton is in a retrograde orbit and although it isn't a moon Venus is in a retrograde orbit
Use of retrograde in dance: is to perform the motif backwards in a dance
Mercury Retrograde was created on 2008-06-03.
Retrograde Loop is the hole commonly found on the outside of a penis.
You are sure medicine is always new
antidepressants may help to treat retrograde ejaculation.
Venus is the only inner planet that has retrograde rotation; Uranus and Pluto are the only outer planets that have retrograde rotation.