Horrible but True Natural World Dangerous Waters Hunters and Hunted Weird Plants Prehistoric Life Natural Disasters History Exploration Unusual Events

Choose a Page:Slow GrowerShooting UpNoisy FlowerChemical WeaponsDesert PlantsBig And SmellySlow And Sweet*Ancient Algae*Root CropShort Of BreathBladderwortNo EscapeVenus FlytrapCrocus CormsAncient SeedsSurvival TechniquesGreen Giants Ancient Algae Blue-green algae discovered in fossil deposits at least 3.4 billion years old are identical to forms of blue-green algae living today. Fossils give vital information about early life on Earth   Previous: Back Book: Horrible but True Section: Natural World Chapter: Weird Plants