News tagged with reproductive success

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Old males win sex battle

(PhysOrg.com) -- Old roosters can still dominate the sexual pecking order even when their ability to fertilise eggs drastically declines, new Oxford University research has shown.

Jun 25, 2010
3.6 / 5 (7) 0 | with audio podcast

Unattractive guppies have better sperm

(PhysOrg.com) -- Scientists studying tropical guppies have discovered that the less colorful and attractive males have better quality sperm, while the attractive fish invest in their appearance at the expense ...

Jun 07, 2010 report
3.7 / 5 (3) 0 | with audio podcast

Honest deer every year

The vocalisations or 'groans' of male fallow deer provide rivals and potential mates with an honest account of the emitting animal's competitive abilities. A study, published in the open access journal BMC Biology, descri ...

Apr 09, 2010
3.7 / 5 (3) 1 | with audio podcast

How the daisy got its spots... and why

Dark spots on flower petals are common across many angiosperm plant families and occur on flowers such as some lilies, orchids, and daisies. Much research has been done on the physiological and behavioral ...

Dec 18, 2009
4.5 / 5 (2) 0

EPA fellow studies effect of mercury in toads

Christine Bergeron of Old Orchard Beach, Maine, a doctoral student in Virginia Tech's College of Natural Resources, received a fellowship from the Environmental Protection Agency's (EPA) National Center for ...

Oct 19, 2009
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