Tell me why giraffes have such short necks? Most had very long necks and long, whip-like tails; however, one family(the dicraeosaurids) are the only known

The world’s tallest land animal, the giraffe boasts some curious characteristics including elongated neck vertebrae, an unusual heart structure and blood pressure more than twice that of humans.

(2009), giraffe neck length is very similar in both genders and therefore sexual selection can not be concluded as an explanation of long necks. However, Simmons & Altwegg (2010) The Lamarckian theory states that a change in an organism can pass to the offspring. The classic example that he used as Giraffes. He explained that a Giraffe with its constant strain over a lifetime to stretch its neck as long as they could developed an elongated neck. He discussed it as a “natural tendency towards perfection.” 2016-05-17 · “The giraffe’s stature, dominated by its long neck and legs and an overall height that can reach 19 feet (~ 6 m), is an extraordinary feat of evolution that has inspired awe and wonder for at least 8,000 years — as far back as the famous rock carvings at Dabous in the Republic of Niger,” said Douglas Cavener of Penn State, who led the research team with Morris Agaba of the Nelson Anyone who has seen this majestic creature in the wild, nibbling away at the top of an acacia tree, has to marvel at the wonder of evolution.

Giraffes evolution of long necks

As longer necks present. "Darwin (1871) and many African folk legends before him [] proposed a simple but powerful explanation for the large and elongated shape. Long necks able to explain why the giraffe's neck evolved. The most common Darwinian explanation for giraffe neck evolution—the advantage a long neck gave in reaching May 17, 2016 The more fundamental question of why giraffes evolved their long necks remains open, however. The apparently self-evident idea that it was to Well the longer the neck of the ancestors of the giraffes was the higher trees it could feed from without competition from others of its kind and other species! The Nov 20, 2013 The giraffe's long neck is a perfect adaptation to the animal's natural habitat. Clearly the giraffe evolved this uncommon and helpful trait in order Meanwhile organs that organisms stopped using would shrink.

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bacterial evolution of antibiotic resistance and giraffes' long necks. While none of the students included variation, selection and inheritance in their responses Winning by a Neck: Sexual Selection in the Evolution of Giraffe. Article Megaherbivores: The Influence of Very Large Body Size on Ecology.

Long ago, giraffes didn't have long necks. They wanted to eat the higher leaves but had to compete with elephants and antelopes for the lower leaves. One day, a giraffe was born with a slightly

Darwin’s story of how the giraffe got its long neck is perhaps the most popular and widely-told story of evolution. It is popular because it seems plausible: giraffes with slightly longer necks enjoyed a slight selective advantage in reaching the higher leaves of trees, and so over the ages these slight neck elongations accumulated, resulting in the modern giraffe. Long ago, giraffes didn't have long necks.

The idea is that longer necked males are dominant. But this theory has also been questioned.
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Individuals that were able to reach some plant that was a little higher survived and reproduced better. For the swan, a little lower, perhaps.

Then the factor of natural selection came into light. Giraffes with longer necks could reach long heights and had better nutrition than the Giraffes with shorter ones.
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Winning by a Neck: Sexual Selection in the Evolution of Giraffe. Article Megaherbivores: The Influence of Very Large Body Size on Ecology.

There are a few interesting theories!Don't miss any uploads! May 17, 2016 And not just in their necks. The study, a team effort led by scientists from Pennsylvania State University and the Nelson Mandela Institute of Keywords: Sauropod, Giraffe, Dinosaur, Evolution, Cervical vertebra, Neck We survey the evolutionary history of long necks in sauropods and other animals, Feb 5, 2020 compiled a list of 25 animal evolution questions and answers to explain some evolutionary mysteries, from why giraffes have such long necks tion for the giraffe's long neck, and on present evidence it provides a better explanation than one of natural selection via feeding competition. Unlike almost every The long neck is a later adaptation since such ancestors had short necks and were smaller resembling more a modern okapi than an actual giraffe. Fossils of these Jun 30, 2016 The French zoologist Jean-Baptiste Lamarck is usually credited as the first person to suggest that long necks have evolved in giraffes because Nov 30, 2015 For years, there has been scant fossil evidence showing how the giraffe evolved to have such an admirably long neck.

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