![]() Statements that certain species of mammals are "born blind" refer to them being born with their eyes closed and their eyelids fused together the eyes open later. Humans have very poor vision at birth as well. (If they could see, they could wander off.) Rabbits are born with eyes and ears closed, totally helpless. Treatment can be in the form of ocular medication, like prescription eye drops.īlindness at birth serves to preserve the young who are dependent on their parents. Glaucoma can be seen in dogs, and less commonly, cats. The damage to the optic nerve is usually caused by intraocular pressure of the eye being elevated. Glaucoma is a progressive condition the eye causes damage to the optic nerve. ![]() Just like with humans, cataract extraction surgery can be performed on cats and dogs. Cataracts are less common in cats in comparison to dogs, where it is fairly common. Some animals that are prone to the development of cataracts are dogs, elephants, horses, pandas and seals. Cataracts can be developed through old age, diseases or trauma to the eye. Cataracts Ĭataracts are the result of the opacification or cloudiness of the lens in the eye. Some species are born without eyes such as the kauaʻi cave wolf spider, olm and the Mexican tetra. Many blind species have been able to adapt, navigate and survive in their environment by relying on their other senses. Visual capacity is a continuum, with humans falling somewhere in the center.īlindness in animals can be caused be the result of environmental adaptations over time, or due to various conditions of the eyes. In general, nocturnal or subterranean animals have less interest in the visual world, and depend on other sensory modalities. For this reason, blindness in animals is a unique topic of study. Visual perception in animals plays an important role in the animal kingdom, most importantly for the identification of food sources and avoidance of predators. If you need help making a lapbook, you can find more information here: How to Make a Lapbook.Animals with limited visual perception A blind mole-rat. Here is a sample lapbook made with two file folders. Enjoy a week of reading and learning all about nocturnal animals.Choose and prepare the mini-books you want to use with your student.If you want, go to your local library and check out books about nocturnal animals: bats, owls, moles, flying squirrels, hedgehogs, badgers, etc.How to Get Started with Your Nocturnal Animals Lapbookįollow these simple instructions to get started with the lapbook. Zipping, Zapping, Zooming Bats by Ann Earle.Explore My World: Nighttime by Jill Esbaum.Where Are the Night Animals? by Mary Ann Fraser.The file includes information about nocturnal animals, but it’s a good idea to read some books together, too. There’s No Place Like Home Accordion Book.Who’s Who? (diurnal, nocturnal, and crepuscular) Flap Book.Owl Pellet Observations Simple Fold Book.In addition to the research lessons, the file includes these mini-books for your student to create a Nocturnal Animals Lapbook: To access all of the lessons in this Nocturnal Animals Lapbook, subscribe to Homeschool Share’s email list using the form in this post. Whiskers are sensitive like a human’s fingertips cats can stick their whiskers out front to help them feel their way around in the dark. Whiskers also help animals find their way. While fishing in the river, a raccoon is dependent on its sense of touch rather than sight to reach in the water and find fish to eat. Touch: Many animals use this sense to help them “see” in the night. Animals use their nose to track the scents and find dinner. Smells linger in the air for longer at night since the air is more still. ![]() Smell: Generally speaking, night animals have a better sense of smell than day animals. Nocturnal animals must have special senses in order to find their way, hunt their food, and flee predators. Many nocturnal animals are black or grey, and they are camouflaged at night. It’s also easier to hide at night (from predators). It’s easier to find a food source at night because there isn’t as much competition.ģ. Some animals would get too hot or dry out in the daytime. Here are three basic advantages to being a night owl.ġ. Crepuscular: active at dawn and dusk examples include Kodiak Bear, snow leopard, mule deerĬan your student think of any reasons why animals would want to sleep through the day and come out at night?.Diurnal: awake and active at day examples include chipmunk, butterflies.Nocturnal: awake and active during the night examples include raccoon, skunk, and red fox.Nocturnal, Diurnal, and Crepuscular: Understanding the Differenceĭifferent animals are awake at different parts of the day. Here are some sample lessons from the Nocturnal Animals Lapbook: ![]()
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