News tagged with dimorphism
Polymorphism
Polymorphism or dimorphism may refer to:
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Do parasites evolve to exploit gender differences in hosts?
Some disease-causing parasites are known to favor one sex over the other in their host species, and such differences between the sexes have generally been attributed to differences in immune responses or behavior. But in ...
Feb 28, 2012 |
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Size matters -- in virulent fungal spores -- and suggests ways to stop a killer
Scientists at Duke University Medical Center have found that larger fungal spores can be more lethal. Their findings about two different spore sizes of the fungus Mucor circinelloides, a pathogen that kills ...
Jun 16, 2011 |
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Lessons from the pond: Clues from green algae on the origin of males and females
A multicellular green alga, Volvox carteri, may have finally unlocked the secrets behind the evolution of different sexes. A team led by researchers at the Salk Institute for Biological Studies has shown ...
Apr 15, 2010 |
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Biologist Shows Female Birds of a Feather Compete Together
(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, ...
Dec 15, 2009 |
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Male sabertoothed cats were pussycats compared to macho lions
Despite their fearsome fangs, male sabertoothed cats may have been less aggressive than many of their feline cousins, says a new study of male-female size differences in extinct big cats.
Nov 05, 2009 |
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The curious chromosomes of a curious fruit
Incipient sex chromosomes have been found in New Zealand's eponymous export, the kiwifruit. Researchers writing in the open access journal BMC Genomics have mapped the kiwifruit genome and pin-pointed the sex-determining locus. ...
Mar 09, 2009 |
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Sexual Encounters of the Third Kind: Darwin's Beetles Still Producing Surprises
(PhysOrg.com) -- On the eve of Charles Darwin’s 200th birthday, researchers at the University of New Mexico and University of Montana report a new twist in sexual selection theory - the realm of evolutionary ...
Biology /
Feb 06, 2009 |
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