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Adaptation in Animals

Explore how organisms develop features to survive in various habitats. Learn about short and long-term adaptations, from color changes to specialized body structures in aquatic, terrestrial, and arboreal environments. Discover fascinating adaptations like warning colors and mimicry. References: Microsoft Encarta Encyclopaedia, Biology for Class 9 by Mishra and Saha.

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Adaptation in Animals

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  1. Adaptation in Animals By Sanjay and Vijay

  2. An Introduction • Organisms live in different habitats • They do not survive if taken out of their natural habitats • Organism develop certain features to survive and reproduce successfully in their environment

  3. What is adaptation? • Structural and functional features of living forms developed over a period of time which enables them to survive and reproduce in the particular habitat.

  4. Types of adaptation • Short term adaptations • eg. Skin turning its colour due to exposure to sunlight • Long term adaptations • Eg. Beaks and claws in birds

  5. Adaptation in different habitats • In aquatic habitat • In terrestrial habitat • In arboreal habitat

  6. Adaptation in aquatic habitat • Aquatic habitats are both salt and fresh water habitats • Organisms may have floats,air sacs air cavities etc. • Streamlined body and fins as in fishes • Special coverage like shell,scales waxy coat to protect against decay • Some have special respiratory organs like gills

  7. Adaptation in terrestrial habitat • Adaptation to vagaries in climatic factors like temperature, rain fall,etc. • Adaptation of body for rapid movement • Protective adaptation like colour of skin,cover on body etc. • Colouration and climbing eg. Chameleon

  8. Adaptation in arboreal habitat • Stong body with well developed pectoral girdle which support weight of the body • Tail may be prehensile(capable of holding) as in monkey or not prehensile but with hair and scales(to help against slipping) as in squirrels • The girdle is broad to support the body

  9. Know few more interesting adaptations • Warning colours: some insects like wasps,bees and butterflies exhibit such colours that enemies feel they are unpalatable • Protective resemblance: some insects and their larvae look like twigs of trees and thus escape from enemies. Eg. Leaf insect • Mimicry: Similarity of one species with another eg.long horned beetle resembles wasp in form and colour.

  10. Acknowledgements and bibliography • Microsoft encarta encyclopaedia • Biology for class 9 by Mishra and Saha

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