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The little ice age was a period of unusually cold temperature in many parts of the world that lasted from about the year 1350 until 1900CE There were unusually harsh winters and glaciers grew larger in many areas Scientist have long wondered what caused t 3
The Little Ice Age was a period of unusually cold temperatures in many parts of the world that lasted from about the year 1350 until 1900 C E There were unusually harsh winters and glaciers grew larger in many areas Scientists have long wondered what caus 3
TPO 27The little ice age was a period of unusually cold temperature in many parts of the world that lasted from about the year 1350 until 1900CE There were unusually harsh winters and glaciers grew larger in many areas Scientist have long wondered what 70
In 1912 a bookseller named Wilfrid M Voynich acquired a beautifully illustrated handwritten book manuscript written on vellum vellum is a material that was used for writing before the introduction of paper The Voynich manuscript as it became known resembl 73
Like many creatures humpback whales migrate long distances for feeding and mating purposes How animals manage to migrate long distances is often puzzling In the case of humpback whales we may have found the answer they may be navigating by the stars 76
Pterosaurs were an ancient group of winged reptiles that lived alongside the dinosaurs Many pterosaurs were very large some as large as a giraffe and with a wingspan of over 12 meters Paleontologists have long wondered whether large pterosaurs were capabl 75
Did bees a type of insect exist on Earth as early as 200 million years ago Such a theory is supported by the discovery of very old fossil structures that resemble bee nests The structures have been found inside 200 million year old fossilized trees in the 73
Sea otters are a small mammal that lives in the waters along North America s west coast from California to Alaska A few years ago some of the sea otter populations off of the Alaskan coast started to decline rapidly and raised several concerns because o 73
Reading Time 3 minutes In an effort to encourage ecologically sustainable forestry practices an international organization started issuing certifications to wood companies that meet high ecological standards by conserving resources and recycling materials 3
As early as the twelfth century A D the settlements of Chaco Canyon in New Mexico in the American Southwest were notable for their great houses massive stone buildings that contain hundreds of rooms and often stand three or four stories high Archaeologist 80

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