WebJul 7, 2010 · Long necks come at a cost. Because a giraffe’s brain is around 2 metres above its heart, the heart has to be big and powerful. In fact, for the blood to reach the brain it has to be pumped at ... WebJul 15, 2024 · Their neck alone can be 6 feet long, which is taller than the average man and can weigh up to 600 pounds. ... Giraffes can also run very fast, around 35 mph, for …
Giraffes evolved long necks for multiple reasons Popular Science
There is no denying that giraffes have the longest necks when it comes to present-day mammals, but there have been longer necks in the past. For instance, the Mamenchisaurus dinosaurs had a neck that stretched over 10 meters long, 4-5 times the neck length of present-day giraffes. Now, such a long neck … See more To clear up the long neck conundrum, teachers at my high school took cues from Charles Darwin’s idea of natural selection and explained that, among the ancestral population of giraffes, there were some individuals that … See more The latest and rather surprising theory, which hasn’t been proposed before, is that the giraffe’s long necks are the result of sexual selection—to compete for females, male giraffes developed a long neck. In the savannahs of … See more WebOct 7, 2015 · The age-old question of how the giraffe got its long neck may now be at least partly answered: Long necks were present in giraffe … shunning family members
Natural Selection In Giraffes - 5.04 Collaboration …
WebSep 13, 2024 · At up to 5.8 metres tall (19 feet), giraffes are the tallest animal on land, thanks to their unusually long necks. But although their … Weblikely to get a good meal, while those with longer necks were more likely to obtain one. As a result, giraffes with longer necks thrived, while those with shorter necks were more apt to become sick and die, or at the least produce fewer offspring.3 Gould’s summary of the typical textbook story is as follows: giraffes evolved ‘long necks in ... Web2. A giraffes neck can be up to 2.4 m (7.9 ft) in length. Various theories for a giraffes long neck include evolution to enable it to reach food high in trees that other animals couldn’t. Another theory is proposes males who take part in ‘necking’ contests obtain access to females, and therefore larger necks are envitable over time. 3. the outlet company providence ri