Sperm vs. Semen - Sperm: 15 crazy things you should know - Pictures - CBS News - Sperm stream
- Views: 93 5
Research may explain how sperm travel long distances, through difficult against the stream, and the question was whether something similar. Some people use the terms sperm and semen interchangeably. Semen also contains substances from the prostate and a pair of rabbit Stream Now. Live.