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Published byIsabel Norris Modified over 9 years ago
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Let’s Journey to the Galapagos Islands
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What can weigh up to 700 pounds, live up to 188 years and can be ridden like a horse?
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A Galapagos Tortoise
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How did the tortoise get to Galapagos Islands? It was native to Equador some 600 miles away
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On the HMS Beagle, a historic journey was made
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Charles Darwin, a Naturalist made a famous historical trip
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On the Galapagos Islands Darwin found many interesting species: What is a species? A group that have common characteristics and have the ability to reproduce
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Some of the species that Darwin found: The Marine Iguana
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Finch Birds
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Galapagos Tortoises
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Darwin was convinced that Evolution had occurred What is Evolution? Gradual Change that is driven by Natural Selection Natural Selection(aka Survival of The Fittest) is when forms of life have traits that allow them to adapt therefore survive
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Examples of species who have survived because of Natural Selection
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3 things that effect Natural Selection 1. Overproduction 2. Competition 3. Variation
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Evolution Continued
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Overproduction Too many offspring are produced for the amount of resources available
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Competition Organisms compete for food, shelter, etc.
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Variation Variation is adaptation. Organisms have the ability to 1. blend in (camouflage) 2. obtain food (sharp teeth, sense of smell, etc.) 3. Protection (quills, odors, etc.) 4. Helps it to move (speed, climbing, etc.) When adaptation occurs, is happens through generations.
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How have these animals adapted? Porcupine
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Giraffe
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Chuckwala
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Camels
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