Latest Sperm competition Stories
British university scientists have discovered a species of bushcricket that boasts the largest testicles in the animal kingdom, representing 14 percent of their total body weight.
Researchers genetically engineer glow-in-the-dark sperm in fruit flies, revealing much more about sexual selection.
Inbred male sperm have been found to fertilize fewer eggs when in competition with non-inbred males according to a new study by the University of East Anglia.
Mothers win the genetic tug of war by producing more sons with larger fathers and more daughters with smaller fathers.
Previously unobservable events occurring between insemination and fertilization are the subject of a groundbreaking new article in Science magazine (March 18) by Mollie Manier, John Belote and Scott Pitnick, professors of biology in Syracuse University's College of Arts and Sciences.
Leafcutter ant queens can live for twenty years, fertilizing millions of eggs with sperm stored after a single day of sexual activity.
Spermatozoa from the same individual cluster together, improving motility in the race to the egg.
British scientists say they've found some female insects can control the amount of sperm they store in an effort to select the best father for their young. University of Exeter researchers say their findings represent new evidence to explain how some female insects can influence the father of their
Scientists have found new evidence to explain how female insects can influence the father of their offspring, even after mating with up to ten males. A team from the University of Exeter has found that female crickets are able to control the amount of sperm that they store from each mate to select the best father for their young.
Attractive males release fewer sperm per mating to maximize their chances of producing offspring across a range of females, according to a new paper on the evolution of ejaculation strategies.
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