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  1. 1. EvolutionEvolution
  2. 2. Animals change in time = EVOLUTION. Time…… Archaeopteryx (Dinosaur) Birds Are birds descendants of dinosaurs? Some scientists say YES
  3. 3. What do you think? Could it be possible?
  4. 4. What do you think? Megalosaurus Ostrich Are their skeletons similar?
  5. 5. Evolution of giraffes Two possible theories: • Lamark • Darwin Hello students!!
  6. 6. Giraffe evolution (Lamark) VIDEO Long time ago, giraffes had short neck... They couldn’t reach the highest leaves… Little by little their neck became longer
  7. 7. Giraffe evolution (Darwing) 1. Long time ago, there were giraffes with short and long neck. The ones with short neck couldn’t eat, they were really hungry. 2. Only long-necked giraffes survived.
  8. 8. Why do animals change as time goes by? Animals change to adapt to the environment