My picks from ScienceDaily

The Secret To Chimp Strength:

February's brutal chimpanzee attack, during which a pet chimp inflicted devastating injuries on a Connecticut woman, was a stark reminder that chimps are much stronger than humans--as much as four-times stronger, some researchers believe. But what is it that makes our closest primate cousins so much stronger than we are? One possible explanation is that great apes simply have more powerful muscles.

New Link Between The Evolution Of Complex Life Forms On Earth And Nickel And Methane Gas:

The Earth's original atmosphere held very little oxygen. This began to change around 2.4 billion years ago when oxygen levels increased dramatically during what scientists call the "Great Oxidation Event." The cause of this event has puzzled scientists, but researchers writing in Nature have found indications in ancient sedimentary rocks that it may have been linked to a drop in the level of dissolved nickel in seawater.

Studies Of Hyena Skull Development Put Teeth Into New Female Dominance Theory:

Getting between a female hyena and her cubs at chow time is no laughing matter - especially for males. Females rule among spotted hyenas, making them rare among mammals and unique among carnivores, Michigan State University researcher Kay Holekamp said. After more than 20 years of closely studying generations of the ferocious, yet social creatures, Holekamp and colleagues now believe they know why.

Red In The Face? People Use The Color Of Your Skin To Judge How Healthy You Are:

People use the color of your skin to judge how healthy you are, according to researchers at the University of St Andrews. Scientists in the School of Psychology have shown that there is truth to the received wisdom that a "rosy" complexion denotes healthiness, whilst a "green" or "pale" color indicates illness.

Power Structure Of Bronze Age Societies Was Based On Social Networks:

Archaeologist Magnus Artursson at the University of Gothenburg, Sweden, demonstrates in his thesis that societies during the Late Neolithic and Bronze Age had a significantly more varied and complex structure than was previously thought.

Is Love At First Sight Real? Geneticists Offer Tantalizing Clues:

Leave it to geneticists to answer a question that has perplexed humanity since the dawn of time: does love at first sight truly exist? According to a study published in the April 2009 issue of the journal Genetics, a team of scientists from the United States and Australia discovered that at the genetic level, some males and females are more compatible than others, and that this compatibility plays an important role in mate selection, mating outcomes, and future reproductive behaviors.

Premature Ejaculation Spray Enables Men To Last Six Times Longer After Penetration:

Men with premature ejaculation who used a topical spray five minutes before intercourse were able to delay their orgasm six times longer than normal, according to a study in the April issue of BJU International.

Antarctic Marine Biodiversity Data Now Online:

The International Polar Year (IPY) concluded in March 2009 with a tangible legacy in the form of a network of databases on marine biodiversity that will serve as clearinghouse for all biodiversity-related data gathered since the very first Antarctic research expeditions. The network gathers data describing the species themselves as well as information about their collection history, allowing scientists and conservationists to access the first rigorous census of Antarctic marine life.

To Swim Or To Crawl: For The Worm It's A No Brainer:

A study at the University of Leeds has shown, for the first time, that C. elegans worms crawl and swim using the same gait, overturning the widely accepted belief that these two behaviours are completely different.


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Figure 1: A mother hyena with her cubs. Early developmental experiences can have significant implications for the growth, behavior, survival, and reproductive success of an individual. In many species, one of the most important factors that affects an individual's early development is the maternal…