Lizards Lapbook Preview

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Download club members can download @ @ http://www.christianhomeschoolhub.com/pt/Herpitology----Study-of-AmphibiansReptiles-Teaching-Resources-and-Downloads/wiki.htm

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  • 1.Lizards Lapbook

2. Vocabulary Regeneration - growth anew of lost tissue or destroyed parts or organs Oviparous - egg laying Herpetologist - A zoologist who studies reptiles and amphibians Scale - A flattened rigid plate forming part of the body covering of many animals Cold-blooded- animals who have a body temperature not regulated by the body and close to that of the environment Arboreal- living in or often found in trees Aquatic - Operating or living or growing in water Exothermic - having body temperature that varies with the environment Endothermic - having body temperature that remains constant Metamorphosis - The marked and rapid transformation of a larva into an adult that occurs in some animals Incomplete metamorphosis - The development of a nymph into the imago which in many respects resembles the former; characteristic of more primitive insect orders, such as Heteroptera (true bugs), Orthoptera (locusts, grasshoppers), and Blatterria (roaches). Vernal - occurring in spring Chromatophores - Plastid containing pigments other than chlorophyll usually yellow or orange carotenoids Herpetofauna - *list of the amphibians and reptiles in any given area.* Costal Groves - shoreline swamps containing many trees. Classification Information (for lizards in general) Kingdom: Animalia Phylum: Chordata Class: Reptilia (Sauropsidia) Order: Squamata 3. What is a Lizard? Lizards are living creatures. We know this because they pass the 7 things test - they eat, breathe, move, grow, reproduce, respond to stimuli, and excrete waste. They are creatures from the Animal Kingdom and the phylum of Chordata, which means they are vertebrates having a backbone. A lizard is a reptile; it is a relative of snakes, alligators, crocodiles, tortoises, and turtles. Lizards and all other reptiles are cold-blooded meaning that they cant regulate their body temperature internally and completely dependent on external forces for heat. Although they have an average body temperature that is about 42 degrees Fahrenheit they may be much colder in the winter and warmer in the summer lying on a hot rock in the sun. Lizards have a smooth, shiny appearance so they sometimes can appear slimy or slippery, but their hairless skin is actually very dry due to a lack of pores to excrete water and oils. They have smooth scales that help them to keep moist even in a hot biome like deserts. Other characteristics of reptiles include breathing with lungs, and they are oviparous (most lay eggs, but not all do). Methods of Defense Animals are equipped with different methods to defend and protect themselves. Lizards are no exception, and use these various methods: Camouflage Sharp spines that hurt a predator's mouth Slippery scales make them hard to grip Use their tales to beat off attackers Skinks and geckos can lose their tails and escape with their lives Families of Lizards There are about 40 Families of Lizards! We will learn about six groups including iguanas (family Iguanaidae), chameleons (family Chamaeleonidae), geckos (family Gekkonidae), Gila Monsters (family Helodermatidae), monitors (families Lanthanotidae and Varanidae), and skinks (family Scincidae). 4. Iguanas The Green Iguana is a species of lizard from the family Iguanidae that in the wild lives in the branches of trees of central and South America. Although you will find colonies of them in the United States in Florida, Hawaii and Texas these are animals who have either escaped from owners or are the descendants of those who have escaped their owners. They grow to a length between 4 feet and 6 feet and can weigh up to 20 pounds. They possess rows of spikes down their backs and tails to help defend from predators. They can use their tail like a whip and d eliver a painful blow in self-defense! This tail when grabbed can break off allowing the Iguana to escape harm and regenerate afterward. Most Iguanas are herbivores meaning that they eat vegetation rather than meat although a few species eat birds and fish. Chameleons Chameleons are members of the lizard family called Chamaelontidae. They are mostly found in Africa and Madagascar, but sometimes also in Europe and Asia. Chameleons have very short necks, which makes it impossible for them to turn their heads. To compensate for this, they have very large eyes that can move independently of each other. The chameleons main food is insects. An interesting characteristic of the chameleon is that it has layers of pigmented cells that can be pushed towards the surface of the skin to change its colors. The chameleon does not change colors to camouflage themselves, instead, they change in response to light, temperature, and mood. Geckos - Gecko's are found in the wild only in warm climates, and are classified in the Family of Gekkonidae with numerous subfamilies. Some species even are known to share habitats with a human, which is not discouraged because of the geckos diet of insect pests. Scientist have been studying 5. the design of the gecko's feet because they cling to nearly any surface. The Bible at Proverbs 30:28 even mentions the gecko's ability to hang on with its hand like feet. The specialized toe pad enables them to walk on walls and even ceilings with ease. Skinks- The skink family, Scincidae, make up the largest family of lizards. They are found all over the world with the exception of the polar regions. They tend to be gray or brown (which provides good camouflage), and they range from 1-26 inches in length. Like many lizards, skinks have the ability to leave a tail behind while they escape from a predator, and the tail will grow back. Skinks prey on insects and spiders. Most skinks lay eggs, but some give birth to live young. Your student may want to research the popular Blue-tongued Skink from Australia. Monitors- Monitors belong to the Varanidae family; they are all lizards who live in tropical regions including Africa, Asia, Australia, and the Pacific Islands. These lizards are active and can lash out with their tails if they are provoked; they also attack by biting-- and once they bite, it is very difficult to get them to release. Different species of monitors eat different things, but they are carnivorous and you might find grasshopperes, bettles, crocodile and bird eggs, shrews, squirrels, crabs, giant land snails, or fish on the menu. Some are aquatic (and very good swimmers), and some are agile climbers, but they spend most of their time on land. Monitors vary in size from very small (less than a foot in length) to huge (364 pounds!). Gila Monsters- You probably wouldn't want a Gila Monster for a pet! It has a row of glands in its lower jaw that produce venom. When this lizard bites, it grips for several seconds and injects poison into its victim. Although the bite hurts, it rarely causes a human to die. It does give a warning first-- it will open its mouth wide and hiss-- this tells predators to back off! Gila monsters are carnivores and feast on birds' eggs, baby birds, rodents, frogs, lizards, 6. insects, centipedes, and worms; they are also known to eat carrion (dead animals). When they eat, they don't chew; they just gulp their food down whole (with the exception of eggs-- they break them open). Gila monsters are classified in the Helodermatidae Family. It is named for the Gila River in Arizona and it is the largest lizard in the United States. You can find Gila monsters in desert and semidesert areas; just look for lizards covered with beadlike scales of black and pink or yellow. Unique Lizards Komodo Dragons - Komodo dragons are in the monitor family. Like most lizards, Komodo Dragons are oviparous, laying their eggs in caves. The mother protects her eggs for three months until they hatch. Once they hatch the babies are abandoned by their mother and they run up trees to prevent becoming her breakfast and food to other large Komodo Dragons! The babies spend their first year as arboreal lizards then start to come down to eat with the adults when they are large enough to defend themselves. A Komodo Dragon is an adult at about 6 years old and the cycle begins again. As Adults they may weigh as much as your mom and dad together, about 350 pounds, and be as long as 10 feet! Thats about as long as your car! Komodo Dragons hunt similar to snakes in that they use their forked tongue to smell prey up to five miles away. After catching its prey at speeds of up to 20 KM per hour each Dragon eats about 80% of its own body weight at one time. Animals like deer, monkeys, and goats can be swallowed whole, although it would take about a week to digest such a meal. The Jaragua Lizard- Now that we've talked about the largest lizard, the Komodo dragon, let's turn to the smallest lizard! The Jaragua lizard was discovered in 2001 on the tiny Caribbean island of Beata, off the coast of the Dominican Republic. A female adult Jaragua lizard can fit curled up on a dime! (Picture of one on a dime) 7. The Basilisk Lizard- The basilisk lizard, also known as the Jesus lizard, is a small lizard that seems to defy the laws of physics. This small lizard can walk on water (hence, it's nickname) at speeds up to 7 mph. Scientists are still studying this unique lizard, trying to determine just how it can stay on top of the water. The basilisk belong to the lizard family Iguanidae. Basilisks live in the understory trees and shrubs of rain forests from southern Mexico to Ecuador. They are excellent swimmers and divers, so they are usually found near water. They eat plants, fruit, insects, and small animals. Another neat fact about the basilisk is that they tend to sleep at the very end of the branches of the tree overtop of a pond or lake, that way if a predator comes along and shakes the branches, the basilisk will fall off into lake and escape. Glass Lizards- The unique feature of glass lizards is that they have no legs! They are often called glass snakes, since they look like snakes. They get the "glass" pa