Re: What animal has the largest sperm?

Relative to the organism's body size (and possibly in terms of absolute
size), the sperm of several species of Drosophila (the fruit fly) appear to
be the largest, approaching 1 cm in length. Most of the length in these
cells is made up of the tail, which normally exists in a tangled state. It
is believed this tangled web of sperm tail exists as a means of encumbering
sperm from other males in the contest to fertilize the female's eggs. For
further details, look in the journal Nature, May 11 and September 21, 1995.