Penis size is sexually selected only in ape species like chimps and humans where the female exercises mate choice. Silverback male gorillas, by contrast, monopolise a harem of females and are poorly endowed.
Category Life and Death
Uncovering Nottingham’s Hidden Medieval Sandstone Caves

The very latest laser technology combined with old fashioned pedal power is being used to provide a unique insight into the layout of Nottingham’s sandstone caves — where the city’s renowned medieval ale was brewed and, where legend has it, the country’s most famous outlaw Robin Hood was imprisoned.
Party of One

“A man wrote to say that he accepted nothing but Solipsism, and added that he had often wondered it was not a more common philosophy. Now Solipsism simply means that a man believes in his own existence, but not in anybody or anything else. And it never struck this simple sophist, that if his philosophy was true, there obviously were no other philosophers to profess it.”
– G.K. Chesterton, St. Thomas Aquinas, 1933
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Alchemical symbols

SEE ALSO: -ALCHEMIST KEYBOARD-
Tibetans Evolved to Survive Higher Altitudes
The Tibetan Plateau (map) rises more than 13,000 feet (4,000 meters) above sea level. At such heights, most people are susceptible to hypoxia, in which too little oxygen reaches body tissues, potentially leading to fatal lung or brain inflammation.
To survive the high life, many Tibetans carry unique versions of two genes associated with low blood hemoglobin levels, the researchers found.
