On my own science
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In 1938, off the coast of South Africa, a woman found a strange blue fish with four stubby fins, pointed spines, and a funny looking tail-it was a coelacanth! Until that very moment, the world had believed that coelacanths were extinct. Suddenly, scientists around the world were excited-could more of these unusual creatures be found and studied? Discover how scientists worked to solve the mystery of these extraordinary fish.
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Do you know which ice-age animal had a body similar to a bear's, a short stubby tail, and razor-sharp, 7-inch teeth? A Smilodon! Fierce predators, Smilodons were large saber-toothed cats that lived more than 11,000 years ago-so how do scientists know so much about them? By studying their fossils and the parts of the world where they once lived! Dig through the past to uncover how these remarkable predators once lived-and died.
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Whooping cranes once lived all over North America. But by the 1940s, only one tiny flock was left. These beautiful birds were in danger of dying out. Scientists decided to start a second flock of whooping cranes, but they had a serious problem to overcome. Whooping cranes need to migrate. They live up north in summer, then fly south to spend winter in warmer locations. Usually young cranes follow older cranes when they migrate. How would the scientists...
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Rocks, ice, and snow. That is all Dr. William Hammer and his crew can see when they look at the land around them on Earth's coldest continent. But on top of a mountain, the scientists discover a 190-million-year-old fossil. It is the remains of the first dinosaur found on mainland Antarctica. Learn more about the hunt for fossils in Antarctica and what life might have been like there millions of years ago.