Which animal produces largest sperm? Asian elephant sperm measures about 56 micrometers (0.002 inches), while mouse sperm is about 124 micrometers (0.005 inches). Although mouse sperm is much larger, mice only release 9.5 million of them — compared to more than 200 billion sperm ejaculated by an elephant.
Which animal has the smallest sperm? But because the sperm curls up in a ball, it is able to enter the female reproductive tract, where it then tries to beat rival sperm to it. In mammals, the house mouse (Mus musculus) has the longest sperm relative to its body weight; the Asian elephant has the shortest sperm, similar in size to human sperm.
Do larger animals have larger sperm? The larger the animal, the more important the number of sperm is relative to sperm length. That’s why elephants have smaller sperm than mice. In the animal world, if several males mate with the same female, their sperm compete to fertilize her limited supply of eggs.
How big is the largest sperm? The largest sperm ever discovered belongs to a species of fruit fly, Drosophila bifurca, that has sperm over 2 inches in length – over 20 times their body size! Scientists have found the world’s oldest sperm, frozen in time inside of fossilized ostracods, tiny crustaceans also sometimes known as seed shrimp.