How the Giraffe Got Its Long Neck

GiraffeAfrica’s majestically bizarre leaf-eating giraffe once served as an elite status symbol. Even from early civilizations, images of the giraffe are etched and sketched into the rock all over Africa. Puzzling over how the giraffe got its long neck and gentle behavior, the giraffe was the prize of Kings.

In 46 BC, Julius Caesar brought the first giraffe into Europe. Seeming to blend the characteristics of the camel and leopard, the Romans named the giraffe a “cameleopard.” Caesar presented giraffes to lions in Roman arenas to shred and shock audiences.

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Origin of Life Initiatives

Origin of LifeLife originated in “a warm little pond,” Charles Darwin wrote to Joseph J. Hooker, the founder of geographical botany within Darwin’s circle of colleagues. How, where, and when the first species got started, however, completely escaped Darwin.

In contemplating the origin of life dilemma, Darwin noted in his autobiography

“The mystery of the beginning of all things is insoluble by us, and I, for one, must be content to remain an agnostic.”

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New Bird Tree of Life

Bird Tree of Life JetzScientists last week proposed new evolutionary relationships among all 9,993 of the world’s known living bird species. In a letter published in the prestigious Nature journal, scientists reported on the use of DNA-sequence data to create a radiating phylogenetic tree, a revolutionary new bird tree of life (pictured left).

Walter Jetz (pictured right), an evolutionary biologist at Yale University in New Haven, Connecticut, was the leading author of the letter entitled “The global diversity of birds in space and time.” In an interview with science writer Virginia Gewin for Nature News, Jetz explains –

“This is the first dated tree of life for a class of species this size to be put on a global map.”

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Origin of the Feather

Snowy OwlAs the novelty generating the flight of birds, the feather, the most complex integumentary structure found in vertebrates, has long intrigued and fascinated naturalists.

Since Charles Darwin published The Origin of Species in 1859, however, the origin of the feather emerged as a contentious issue. The newfound association between feathers and dinosaurs has only intensified the problem.

 

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