The data would undoubtedly be of interest, they said, but the head of a sperm whale — even a baby sperm whale — simply could not be scanned. (discovermagazine.com)
The increase in the hormone testosterone stimulates hair growth, changes in the voice, muscle development, and the production of sperm. (childdevelopmentinfo.com)
No mention that there are millions of sperm in that seminal fluid either. (religion.blogs.cnn.com)