"Keep going" he replied "We're still through the throat"
The epic journey of the sperm cell
Once upon a time, a brand new sperm cell was being instructed by an older sperm cell.
"Right," he said, "this is what's going to happen: one day you'll be having a nap and you'll hear a siren. You rush out as fast as can, make absolutely sure you swim as hard as you can, because you HAVE to b...
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