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tag speciation animal behavior

Sly Guys
The Scientist | Jul 1, 2014 | 10+ min read
Across the animal kingdom, dominance isn’t the only way for a male to score. Colluding, sneaking around, or cross-dressing can work, too.
The Hidden Side of Sex
Patricia L.R. Brennan | Jul 1, 2014 | 10+ min read
Sexual selection doesn’t end when females choose a mate. Females and males of many animal species employ an array of tactics to stack the deck in their reproductive favor.
Sperm sparring spotted
Jef Akst | Mar 17, 2010 | 3 min read
Scientists have developed a powerful new way to study sperm competition: Watch the action -- live. The seminal receptacle (SR) and onespermatheca of a female D. melanogasterinitially mated to GFP-sperm malethen remated to RFP-sperm male.Image: © Science/AAASUsing fluorescent tagging technology, the researchers have bought themselves a front row seat to the fight, allowing them to decipher the strategies males use to ensure their sperm (and not another male's) reach the egg, already helping

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