Superdaddy Pyros keeps Pyrenees bear numbers up
Researchers predict painted turtles face extinction due to global warming
Study reveals consequences of a lifetime of sexual competition
Study shows reproductive effects of pesticide exposure span generations
When it comes to survival of the fittest, stress is a good thing
When the woods get crowded, female squirrels improve their offspring's odds of survival by ramping up how fast their offspring grow.
Apr 18, 2013
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Disappearing nannies force parents to accept their duties
(Phys.org) —Large helpers (nannies) in a cichlid fish allow the dominant male and female to reduce their personal contribution to their offspring and territory, according to new research published today ...
Apr 12, 2013
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Study says beavers use scent to detect when trespassers could be a threat
For territorial animals, such as beavers, "owning" a territory ensures access to food, mates and nest sites. Defending that territory can involve fights which cause injury or death. How does an animal decide ...
Apr 09, 2013
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The evolutionary consequences of infidelity: Can extra-pair relationships give rise to sexual dimorphism?
Mate choice in mice is heavily influenced by paternal cues
Mate choice is a key factor in the evolution of new animal species. The choice of a specific mate can decisively influence the evolutionary development of a species. In mice, the attractiveness of a potential ...
Mar 28, 2013
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Why sticking around is sometimes the better choice for males
Researchers from Lund University and the University of Oxford have been able to provide one answer as to why males in many species still provide paternal care, even when their offspring may not belong to ...
Mar 26, 2013
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Nature versus nurture—better looking birds have healthier babies
A female great tits' (Parus major) appearance is shown to signal healthy attributes in offspring in a paper in BioMed Central's open access journal Frontiers in Zoology. The black stripe across her breast an ...
Mar 24, 2013
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Asian carp spawning areas wider than expected
When leaving your wealth to your sister's children makes sense
In most human societies, men pass on their worldly goods to their wife's children. But in about ten percent of societies, men transfer their wealth to their sister's sons, a process called matrilineal inheritance. A new study ...
Mar 20, 2013
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Scientists identify why some fathers are left holding the baby
A century old mystery as to why, for some animals, it's the father rather than the mother that takes care of their young has been cracked by scientists at the University of Sheffield and University of Bath.
Mar 12, 2013
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The maternal effect: How mother deer protect their future kings
(Phys.org) —Do mothers invest more care in their sons if they believe their child is destined to be a king, president or a high-powered leader?
Mar 06, 2013
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