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Animal Variations and Behaviors

Animal Variations and Behaviors. Ensuring Survival. Ensuring Surviva l . As you watch this presentation, make a list of how the variations , adaptations , or behaviors enhance the survival of animals. Include: c amouflage structure and function mouthparts appendages migration

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Animal Variations and Behaviors

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  1. Animal Variations and Behaviors Ensuring Survival

  2. Ensuring Survival • As you watch this presentation, make a list of how the variations, adaptations, or behaviors enhance the survival of animals. • Include: • camouflage • structure and function • mouthparts • appendages • migration • hibernation

  3. Variations • Variation is: • The difference between individuals of the same species • The process or act of changing • Variation is necessary: • If all of the animals in a species were exactly the same, they could all be taken out by disease or disaster.

  4. Structure and Function Comparing structure and function of parts and behaviors help us understand why variation is necessary. • Structure is the form of an organism’s parts. • Example: A pedal is structured like a landing strip for insects. • Function is what that part does. • Example: The function of a petal is to attract insects. http://commons.wikimedia.org/wiki/File:Mature_flower_diagram.svg

  5. Camouflage Camouflage is a method of hiding that allows an otherwise visible animal to remain unnoticed by blending with its environment. Can you find the Northern Leopard Frog? http://commons.wikimedia.org/wiki/File:Northern_Leopard_Frog_Camouflage.jpg

  6. Find the Butterfly Wing Leg http://commons.wikimedia.org/wiki/File:Pr%C3%ADa_-_Mariposa_02.jpg

  7. Find the Flounder Head http://commons.wikimedia.org/wiki/File:Flounder_camo_md.jpg

  8. Find the Grasshopper Thorax (Chest) http://commons.wikimedia.org/wiki/File:Saltamontes_de_alas_azules_(Oedipoda_caerulescens),_Ágreda,_España,_2012-08-28,_DD_01.JPG

  9. Find the Frog Head http://commons.wikimedia.org/wiki/File:Camouflage_DSC05383_-_Original_image.JPG

  10. Mouth Structures The mouthparts of animals must adapt to a specific style of feeding. http://commons.wikimedia.org/wiki/File:Mosquito_closeup.jpg http://commons.wikimedia.org/wiki/File:Muskrat_eating_plant.jpg http://commons.wikimedia.org/wiki/File:Python_molurus_bivittatus_open_mouth.jpg

  11. Mouth Structures • Insects and crustaceans: cutting and chewing, piercing and sucking, siphoning and filtering Scavenger feeder: - Notice that the appendages help get food into the mouth. http://commons.wikimedia.org/wiki/File:Crabs_-_Barbados.jpg

  12. Caterpillar Mouth Structures Used for cutting leaves and other vegetation. Notice that the appendages help get food into the mouth. http://commons.wikimedia.org/wiki/File:Caterpillar_face_close_up.jpg

  13. Carnivore Mouth Structures Sharp teeth to tear flesh http://commons.wikimedia.org/wiki/File:Cheetah_yawning.jpg

  14. Herbivore Mouth Structures Herbivores have flat teeth. In cattle, the tongue is used to grasp food and pinch it off. http://commons.wikimedia.org/wiki/File:Cow_licking_its_nose_with_its_tongue.jpg http://commons.wikimedia.org/wiki/File:Horse_teeth.jpg

  15. Omnivore Mouth Structures Two types of teeth: sharp and flat http://commons.wikimedia.org/wiki/File:Knoxville_zoo_-_chimpanzee_teeth.jpg

  16. Bird Mouth Structures • Bird beaks are shaped to fit their food: • Tearing flesh, cracking hard nuts or seeds, prying open, filtering, etc. http://commons.wikimedia.org/wiki/File:Bird_eating_fish.jpg

  17. Appendages • An appendage is an external body part that sticks out from an organism's body or body segment. • Examples for invertebrates and vertebrates include: limbs, antennae, mouthparts, wings, wing covers, gills, walking legs, swimming legs , and parts of the tail. Typically, each body segment carries one pair of appendages.

  18. Leafy Sea Dragon Appendages for hiding http://commons.wikimedia.org/wiki/File:Leafy_Sea_Dragon.jpg

  19. Appendages Tail appendage Mouth appendages Antenna Swimming appendages Walking appendages

  20. Migration • Migration is a cyclic behaviorthat involves: • the regular, seasonal, or annual journey of an animal from one place to another and back again • Found in all major animal groups, including: • birds, mammals, fish, reptiles, amphibians, insects, and crustaceans • Trigger for the migration: • local climate, local availability of food or water, the season of the year, or for mating reasons

  21. Migration Canadian geese resting on a pond during migration http://commons.wikimedia.org/wiki/File:Canada_Geese_in_pond.jpg

  22. Wildebeest Migration Wildebeest begin migration during the dry season in search of food and water. http://commons.wikimedia.org/wiki/File:Wildebeest-during-Great-Migration.JPG

  23. Hibernation • Hibernation is a survival strategydesigned to conserve energywhen conditions are harsh or when food is scarce. • Smaller animalstend to be more likely to hibernate because migration would require an huge amounts of energy. • Larger animalsare less likely to hibernate because of the additional energy required to warm up a large body.

  24. Some Animals that Hibernate Smooth Green Snake http://commons.wikimedia.org/wiki/File:Smooth_Green_Snake.jpg

  25. Western Painted Turtle http://commons.wikimedia.org/wiki/File:Western_painted_turtle_plastron.JPG

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