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Female mice can identify inbred males by their scent
Biology /
Apr 18, 2008 |
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Scientists at the University of Liverpool have found that female mice avoid mating with inbred males by ‘sensing’ the diversity of a protein type in their urine.
Piddling fish face off threat of competition
Biology /
Dec 12, 2007 |
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Research published today in the online open access journal, BMC Biology, shows that male tilapia fish use pheromones in their urine to fight off competitors and enforce social dominance.
Scientists reveal how mice recognise each other
Biology /
Nov 05, 2007 |
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Scientists at the University of Liverpool have discovered that mice rely on a special set of proteins to recognise each other.
Pheromones identified that trigger aggression between male mice
Biology /
Dec 05, 2007 |
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A family of proteins commonly found in mouse urine is able to trigger fighting between male mice, a study in the Dec. 6, 2007, issue of Nature has found. The study, which is the first to identify protein pheromones respon ...
In the Palace of the Naked Mole-Rat
Biology /
Feb 24, 2009 |
5 / 5 (3) |
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Naked Mole-Rats are ugly, but also very interesting mammals. Now scientists want to find out, if the males influence the distribution of male and female progeny.
Biologist Shows Female Birds of a Feather Compete Together
Dec 15, 2009 |
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(PhysOrg.com) -- With its flamboyantly decorated plumage, the peacock is a classic example of how males among many bird species are more visually eye-catching than their female partners. But new research, ...
Should females trust showy males?
Aug 21, 2009 |
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(PhysOrg.com) -- How honest are males when using sexual displays to signal their eligibility to females?
Female choice benefits mothers more than offspring
Oct 22, 2009 |
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The great diversity of male sexual traits, ranging from peacock's elaborate train to formidable genitalia of male seed beetles, is the result of female choice. But why do females choose among males? In a new study published ...
Researchers may have found why women have an edge on salt-sensitive hypertension
Jan 28, 2009 |
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Researchers may have found why women have an edge in keeping a healthier balance between the amount of salt they eat and excrete - at least before reaching menopause.
Mother knows best: Females control sperm storage to pick the best father
Sep 08, 2009 |
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(PhysOrg.com) -- 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 ...
Ant has given up sex completely, researchers say
Aug 26, 2009 |
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The complete asexuality of a widespread fungus-gardening ant, the only ant species in the world known to have dispensed with males entirely, has been confirmed by a team of Texas and Brazilian researchers.
Mom was right: Why nice guys usually get the girls
Nov 05, 2009 |
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(PhysOrg.com) -- Female water striders often reject their most persistent and aggressive suitors and prefer the males who aren't so grabby, according to new research. Water striders are insects commonly seen ...
When Being a Cuckold Makes Evolutionary Sense
Oct 09, 2009 |
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(PhysOrg.com) -- Evolutionary biology theory predicts that males usually won't invest a lot of time raising offspring when there is a good chance they are not the fathers. Yale University researchers have ...
Execretion analysis aids primate social studies
Feb 15, 2009 |
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The arrival of molecular genetic analysis of both genes and hormones is providing scientists unexpected and unprecedented information about animals -- provided the researchers can find ways to get acceptable samples, said ...
Male Australian redback spiders employ courtship strategies to preserve their life
Oct 22, 2009 |
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(PhysOrg.com) -- New research shows that male suitors of a female cannibalistic spider risk facing a premature death unless they perform an adequate courtship lasting a minimum of 100 minutes. Further, the research shows ...
