“survival of the fittest”

6
“Survival of the Fittest”

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“Survival of the Fittest”. Study 1: Darwin’s Finches. Darwin’s Finches, found on the Galapagos Islands, maintain a variety of beak shapes and sizes. Recourses on the islands can be limited in the dry season, and competition appears to be fierce among the finch population!. - PowerPoint PPT Presentation

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Page 1: “Survival of the Fittest”

“Survival of the Fittest”

Page 2: “Survival of the Fittest”

Study 1: Darwin’s FinchesDarwin’s Finches, found on the Galapagos Islands, maintain a variety of beak shapes and sizes. Recourses on the islands can be limited in the dry season, and competition appears to be fierce among the finch population!

Page 3: “Survival of the Fittest”

Study 2: Male Peacocks• Male peacocks are

some of the flashiest animals on the planet. I’m not sure how effective those feathers are at warding off predators, but they’re certainly eye-catching. #swag

Page 4: “Survival of the Fittest”

Study 3: Katydid• Katydids are tricky

to spot, for obvious reasons! If you’re not paying attention, you’ll pass right by one. They live in trees or shrubs, and rarely leave their woody environment.

Page 5: “Survival of the Fittest”

Study 4: Giraffes• Giraffes are a cut above the

rest. These massively tall herbivores can reach heights of up to 18 feet! They’re usually spotted grazing among the tops of the trees, picking the leaves far out of reach from other African herbivores, such as gazelles… But the middle branches of the trees remain untouched… How peculiar.

Page 6: “Survival of the Fittest”

For each Study:• Develop a Hypothesis (or a possible

explanation) as to why each trait might be adaptive. In detail, explain why the adaptation is useful, and how it might increase the individual’s “fitness”.

• Develop an experiment… a Test! How would you test your hypothesis? What would you look for in the wild? (Hint: don’t overthink it, sometimes the simple experiments give the best answers!