News tagged with sexual dimorphism

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 ...

Biology / Cell & Microbiology

created Apr 15, 2010 | popularity 4.9 / 5 (9) | comments 0 | with audio podcast

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, ...

Biology / Plants & Animals

created Dec 15, 2009 | popularity 5 / 5 (2) | comments 0

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.

Biology / Plants & Animals

created Nov 05, 2009 | popularity 4.2 / 5 (6) | comments 0

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. ...

Biology / Cell & Microbiology

created Mar 09, 2009 | popularity 4 / 5 (2) | comments 0

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 /

created Feb 06, 2009 | popularity 4.9 / 5 (10) | comments 1