Latest Sexual selection Stories
Less-pretty female house sparrows tend to lower their aim when selecting a mate.
Researchers genetically engineer glow-in-the-dark sperm in fruit flies, revealing much more about sexual selection.
It's a question that has puzzled scientists for years: why, in some species of spiders, are the females so much larger than their male counterparts?
Why does female infidelity occur so frequently throughout the animal kingdom?
Tracing the success of individual wild insects in leaving descendants is now possible according to new research by University of Exeter biologists using a combination of digital video technology, tagging and DNA fingerprinting.
Male physical competition, not attraction, was central in winning mates among human ancestors, according to a Penn State anthropologist.
Ever since Darwin, researchers have tried to explain the enormous diversity of plumage color traits in birds.
A study, published in the open access journal BMC Biology, describes how the acoustic qualities of a deerâ€™s call change year by year and reflect changes in status and age.
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.
- A person who stands up for something, as contrasted to a bystander who remains inactive.
- One of the upright handlebars on a traditional Inuit sled.