Why male fruit flies have such enormous sperm

Don't underestimate the manliness of the humble fruit fly: He may be small, but his sperm is not.

In fact, the sperm of the fruit fly Drosophila bifurca can stretch up to nearly 6 centimeters in length. That's several times the length of the male fruit fly himself, and about 1,000 times the length...

from L.A. Times - Science http://ift.tt/1TH21Qc
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