(PhysOrg.com) -- Some male Mexican molly fish sport a structure like a mustache on their top lips, which scientists have now discovered are attractive to female mollies and may represent a sexually selected trait.
A new study by a team of researchers shows that for zebra finches, bonding trumps sex. Post-Doc fellow Julie Elie of the University of California and her team describe in the journal Behavioural Ecology and Sociobiology, ...
(PhysOrg.com) -- Female seed beetles are known for their promiscuity, a surprising fact given that the males of the species have dangerously sharp spikes on their sex organs. Now a U of T Mississauga team led by an undergraduate ...
Plants & Animals
Mar 5, 2009
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Scientists at Harvard University have sketched a new map of the "evolutionary labyrinth" species must traverse to reach eusociality, the rare but spectacularly successful social structure where individuals cooperate to raise ...
Evolution
Aug 25, 2010
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The Black Widow spider gets its name from the popular belief that female spiders eat their male suitors after mating. However, a new study has shown that the tendency to consume a potential mate is also true of some types ...
Plants & Animals
May 6, 2013
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Male sparrows are capable of fighting to the death. But a new study shows that they often wave their wings wildly first in an attempt to avoid a dangerous brawl.
Plants & Animals
Jan 29, 2013
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Male seahorses have a clear agenda when it comes to selecting a mating partner: to increase their reproductive success. By being choosy and preferring large females, they are likely to have more and bigger eggs, as well as ...
Plants & Animals
Jul 7, 2009
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Emily loves Justin - Stop global warming - Two more weeks till I graduate!: The exchange of information in public toilets is widespread. It also occurs in the world of white-footed sportive lemurs. Only instead of writing ...
Plants & Animals
Oct 16, 2014
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Self-righteousness, gratitude, sympathy, sincerity, and guilt – what if these social behaviours are biologically influenced, encoded within our genes and shaped by the forces of evolution to promote the survival of the ...
Plants & Animals
Jan 24, 2017
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Monash University researchers have discovered that male Australian desert goby fish are surprisingly strategic when it comes to courtship, adapting their tactics depending on the frequency of their contact with females.
Plants & Animals
Nov 10, 2010
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