Earth forms Oldest fossils Photo- synthesis evolves Eukaryotic cells evolve Multi- cellular organisms Abundant life Origin of Life Figure 1.3 Life’s Calendar.

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Earth forms Oldest fossils Photo- synthesis evolves Eukaryotic cells evolve Multi- cellular organisms Abundant life Origin of Life Figure 1.3 Life’s Calendar

Earth forms Oldest fossils Photo- synthesis evolves Eukary- otic cells Multi- cellular Abundant life Aquatic life Abundant fossils First land plants First land animals Forests Insects First mammals Dinosaurs dominant Birds Flowering plants Rise of Mammals Origin of Life Figure 1.3 Life’s Calendar First hominids Homo sapiens

Modern humans appeared in the last 10 minutes of day 30. Earth forms Oldest fossils Photo- synthesis evolves Multi- cellular Abundant life Origin of Life Eukary- otic cells Recorded history fills the last 5 seconds of day 30. Aquatic life Abundant fossils Land plants Land animals Forests Insects First mammals Dinosaurs dominant Birds Flowering plants Rise of Mammals Figure 1.3 Life’s Calendar