September 14, 2010 Dan Lewis Uncategorized 0. Their necks make up nearly half their height; they can be almost 2.5m long in a fully grown adult male. Researcher Graham Mitchell of the University of Wyoming has been thinking about it at least since 2009, but now he and a team have put it to the test for the first time by looking at the body measurements of dozens of giraffes in Zimbabwe. Grades. Thank You, Annabell Green from Jamestown New York . Suppose you’re a large flightless bird living on the African savannah where your natural predators are cheetah, lion, leopard, African wild dog and hyena. Based on evolutionary theory and in depth studies of the genes and DNA in giraffes and okapi, it seems that we now know the answer to this question. Long necks of Giraffes is supposedly mostly from males dueling over females by slamming their necks together. Giraffes fight by beating each other with their heads and necks. Africa, Ghanda Long,Long,Long ago giraffe's had short necks and this story will tell how giraffe's got long necks. The mystery has baffled experts since Darwin For a century and a half, naturalists have been vexed by the long neck of the giraffe. Giraffes can reach up to 6 meters tall, and boast long graceful necks. Their offspring, in turn, would inherit necks that were slightly longer. Why do giraffes have long necks? Read on to find out how evolution has led to the diversity of animals on the planet. In this episode, we explore why giraffes evolved long necks over time. The giraffes with long necks will survive and breed and their young will tend to have long necks. ... To keep their balance and reach sprints up to 60 kilometres per hour, giraffes have a sloped back, long legs and short trunks. In fact, natural selection for long necks is not a goal-directed transformation, and it does not take place in a single giraffe’s lifetime. Have some tricky riddles of your own? Average: 3.8 (715 votes) Tags. Grades 7-12. The reason for the neck length of these ungulates has taken off sleep from the scientists for a long … Share this Joke! BioMed Central. Giraffes have a very distinctive physiology. Discussion. Jean Baptiste Lamarck, a French biologist who had an alternate evolutionary theory of biology to that of Charles Darwin, explained that giraffes have long necks because as they reached for leaves in high branches of trees, their necks became longer and stronger. So, why do giraffes have such long necks? Why have giraffes got long necks? Why Do Giraffes Have Such Long Necks? There are a couple of theories about why giraffes have such long necks. This natural selection is the basis for understanding why things evolve to be so functional. Their blood pressure is … Why do giraffes have long necks? The main reason a giraffe has a long neck, is that it likes to eat leaves from high up in the trees. YES NO . It is possible that being able to reach tall leaves would also help, but … Do you know a riddle? With its long neck and … Level 3. Sauropod dinosaurs trump them easily: the dinosaur Mamenchisaurus , for instance, had a neck over 9 metres long… Next Riddle. Grade 3. Giraffes are among the world's tallest animals, and researchers may have discovered why that is by studying their genome. The tallest animal in the world, the giraffe has something to impress. Why Do Giraffes Have Long Necks? Because of their size, eyesight and powerful kicks, adult giraffes are usually not subject to predation, [42] although lions may regularly prey … In any case: Darwin suggested giraffes with longer necks are fitter (for whatever reason), survive to produce more offspring, which increases the prevalence of long necks in the population of giraffes. Giraffes’ necks are long, but there have been longer ones. Their necks are about 1/4 of their body size, yet only have 7 vertebrae, the same as you and I! Grade 5. Because they tell tall tales. Long ago, giraffes didn't have long necks. A. Brownlee put it forward as an idea in 1963.. Sent by: Age: Click here to see the answers. By consulting scientific research and news articles, Stacker compiled a list of 25 animal evolution questions and answers to explain some evolutionary mysteries, from why giraffes have such long necks to how ants can carry 50 times their body weight. Kindergarten. Male giraffes fight for dominance by swinging their necks at each other. Did you answer this riddle correctly? Animals. Filed Under: Zoo Jokes Tagged With: giraffe joke, giraffes, zoo joke in CCL, CDL November 26th, 2013 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. (2011, May 6). Answers to 25 animal evolution questions About a billion years after the Earth formed, the first signs of life emerged. The giraffe’s long neck is a perfect adaptation to the animal’s natural habitat. If greater reach was the main impetus for their long necks, then the legs, necks, and the rest of their bodies should have stretched proportionately over time. This huge neck means that giraffes have to pump blood a long way to their heads, and they have a large left ventricle in order to do so. Do you like the joke? Genome reveals why giraffes have long necks. It is in reality a very gradual change in the frequency of long necks in the species--a change that takes place because some giraffes who have that trait survive and reproduce more successfully in their world. Add Your Riddle Here. Why do giraffes have long necks? Solved: 37%. Please like & subscribe. They Cant Stand The Smell Of Thier Feet. Giraffes are the tallest land mammals on Earth. Because their feet smell! The giraffe goes to sleep on the floor. Giraffes have developed long necks to see predators from a tremendous distance and to get their favorite food sources. Grade 4. ScienceDaily. Average: 3.794405. Sticking their necks out for evolution: Why sloths and manatees have unusually long (or short) necks. Bartender comes out, sees the giraffe, and says, "Hey, why's that lying there?" Why do giraffes have long necks? Hint: Because their feet smell! Necks are also part of giraffes’ mating rituals, and some think it may be the reason for their long necks. A man and a giraffe walk into a bar. A small number of genes, 70 to be exact, over the past 11 or 12 million years have evolved to create the animal with the long neck that we know and love. But things have changed, studies have multiplied, and a hypothesis has appeared now that refutes Darwin and suggests that the long neck of the giraffes is due to sexual selection and not to a food adaptation. 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