Finch sperm go long to fertilize more eggs
![male finch](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/12/ticker_finch_free.jpg?fit=860%2C460&ssl=1)
This finch may be handsome, but he’s got to have it where it counts. In finches, longer sperm fertilize more eggs.
Jim Bendon/ Wikimedia Commons (CC BY-SA 2.0)
This finch may be handsome, but he’s got to have it where it counts. In finches, longer sperm fertilize more eggs.
Jim Bendon/ Wikimedia Commons (CC BY-SA 2.0)