Super sperm
“As the scientists who study male germ cells will readily attest, sperm are some of the most extraordinary cells of the body, a triumph of efficient packaging, sleek design and superspecialization. Human sperm are extremely compact, and they’ve been stripped of a normal cell’s protein-making machinery; but when cast into the forbidding environment of the female reproductive tract, they will learn on the job and change their search strategies and swim strokes as needed.” - NYTimes
