kidcyber provides links to other web pages, selected and examined for their appropriateness, to provide more information about a particular topic. , specifically their scholarship fund that provides education opportunities for Nepalese children, in particular keeping girls in school, which offers pathways to trainingĭISCLAIMER: In the interest of a safe, educational online experience.
© 2022 We acknowledge and pay respect to the Traditional Custodians of this continent and to their Elders, past, present and emerging. Students from K to 8, their teachers and parents. Recent books written together include Using the Library 1, 2 & 3 Thinking Through Themes (4 titles: Air, Fire, Water, Earth) and The Perfect School Project, published by and available at Teaching Solutions. We are authors (together, individually and with others) of numerous books for teachers and kids, published in Australia and overseas. The writers and publishers of kidcyber are Shirley Sydenham, a primary teacher, and Ron Thomas, a primary teacher-librarian. 'Ask a kidcyber Researcher' feature where students can request specific information about a topicĪdvice to parents about helping with school homework assignments and projects KidcyberQuests: student webquest assignments with links to information sites for research, project ideas, evaluation Units of work and lesson plans for teachers on a variety of topics in key learning areas Welcome to a website established in 1999 for primary students and teachers.Įasy to understand text for student research, including material for primary school students K-6 BehavioursĪlthough giraffes are peaceful animals, they will defend themselves from lions, leopards and hyenas which attack the young, and sometimes adult giraffes. Giraffes are able to deliver powerful kicks with any of their four, strong, heavy legs, and a well placed kick can kill a lion.
Giraffe predators and prey skin#
The skin on the legs below the knee is tight, otherwise high blood pressure would cause a giraffe’s ankles to swell. The giraffe has high blood pressure because the blood circulation has to go 2m higher than the heart to reach the brain. Such rapid changes in blood pressure would make a giraffe faint. There are special valves in the neck arteries so that when the giraffe bends its neck down, the blood doesn’t rush to its head, and when the head is raised again, the blood doesn’t rush back down to the heart. A giraffe heart is the biggest of any animal’s, weighing around 11 kg. This keeps them from tripping over.īecause of their 2 m long necks, giraffes need big, strong hearts to pump blood all the way up to the brain. They move the two legs on one side of the body forward, then the two legs on the other side. They can run very fast, reaching speeds of about nearly 60 km per hour.īecause of their long legs and short bodies, giraffes move differently from other four legged animals. Giraffes’ long legs mean they take big steps when they walk or run. Of all the subspecies, the reticulated giraffes have the clearest, most distinctive blotches. Not only do the different subspecies have distinct patterns, no two giraffe have the same pattern. (Note, however, not just in this case but in any case of co-evolution and evolution, that there is always more than one cause that forces an organism to adapt, and though it is likely that the higher branches are to avoid the tortoises, it is also possible that it was a different cause, such as the sun, the ocean, or a different organism.The giraffe’s tough skin has short fur and is blotched in patterns of browns and yellows. The cactuses, the prey, may have evolved high branches so that the tortoises, the predators, can't reach them. On another island, where short-necked tortoises live, the branches are lower down. On one of the islands, where long-necked tortoises live, the branches are higher off the ground. Galapagos tortoises eat the branches of the cactus plants that grow on the Galapagos islands. This is true in all predator-prey relationships.Īnother example of predator-prey evolution is that of the Galapagos tortoise. An important thing to realize is that as both organisms become faster to adapt to their environments, their relationship remains the same: because they are both getting faster, neither gets faster in relation to the other. The fastest zebras are able to escape the lions, so they survive and reproduce, and gradually, faster zebras make up more and more of the population. The fastest lions are able to catch food and eat, so they survive and reproduce, and gradually, faster lions make up more and more of the population.