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Is a hippopotamus more closely related to a pig or to a whale?

Is a hippopotamus more closely related to a pig or to a whale?. HIPPO WHALE. Evolutionary Link. Whales and hippos had a common water-loving ancestor 50 to 60 million years ago that evolved and split into two groups: The cetaceans (whales, dolphins, and porpoises)

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Is a hippopotamus more closely related to a pig or to a whale?

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  1. Is a hippopotamus more closely related to a pig or to a whale?

  2. HIPPO WHALE

  3. Evolutionary Link • Whales and hippos had a common water-loving ancestor 50 to 60 million years ago that evolved and split into two groups: • The cetaceans (whales, dolphins, and porpoises) • The pig-like anthracotheres – died out less than 2.5 million years ago, leaving only the hippo as a descendent

  4. Cladogram

  5. Cladograms are used to… • Organize organisms based on evolutionary relationships (phylogeny). • In other words…who is related to who and where did we come from…

  6. How are cladograms constructed? • Organisms are grouped together based on their shared derived characteristics.

  7. Cladogram construction • Given a table of derived characters, create a cladogram

  8. Step 1 – Create a Venn Diagram • How many organisms are you comparing? • This number will equal the number of circles in your Venn diagram. • Now count the number of characters each organism has. • This will be the order that you place the organisms in the Venn Diagram.

  9. Venn Diagram Placenta: Human Mammary glands: Kangaroo Two pairs of limbs: Bullfrog Vertebrae: Shark

  10. Step Two – Convert the Venn Diagram into a Cladogram Kangaroo Bullfrog Human Shark Placenta Mammary Glands Two pairs of limbs Vertebrae

  11. Turn to your neighbor and discuss your understanding of cladograms.

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