Dating of fossils by scientists

In the first part of the lesson, students will discuss what we know about horses. This comparison is subtle, but demonstrates what we know as fact and what we know as theory, and more importantly, what sort of proof scientists need for fact to exist.As students discuss the Stegosaurus, they will realize that fossils tell a story about the animal. how tall, how wide, what kind of teeth, and they describe ideas, i.e.Two 160 million-year-old mammal fossils discovered in China show that the forerunners of mammals in the Jurassic Period evolved to glide and live in trees.

But the scientists behind the new finding believe their analysis should hold up to scrutiny.The word "hominid" in this website refers to members of the family of humans, Hominidae, which consists of all species on our side of the last common ancestor of humans and living apes.Hominids are included in the superfamily of all apes, the Hominoidea, the members of which are called hominoids.what the dino may have eaten, how fast it may have moved due to its leg structure, and how it may have hunted.Once students have an understanding of how to extrapolate facts and ideas from fossils, they will do some of their own digging in the second part of this lesson to practice using the thinking skills they've obtained.Tiny, tubular structures uncovered in ancient Canadian rocks could be remnants of some of the earliest life on Earth, scientists say.

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