3rd Grade Science › Fossils As Evidence
Researchers were digging in the desert when they came across a fossilized cactus leaf buried in the sand.
Environments can change over time. Some places stay the same. What might this environment have been in the past?
Gordon Hubbell and a crew of fossil hunters were digging holes in the desert of Peru in 1988. This desert is one of the driest places on Earth. It gets almost no rain. Hubbel was digging and found jawbones and more than 200 sharp teeth. He is an expert in fossilized sharks, so he recognized the teeth right away. They were shaped like triangles and came to a very sharp point. They belonged to a distant relative of the great white shark!
How could Hubbell "prove" that these teeth were from a relative of the great white shark?
How does a fossil tell us about an organism that lived in the past?
Gordon Hubbell and a crew of fossil hunters were digging holes in the desert of Peru in 1988. This desert is one of the driest places on Earth. It gets almost no rain. Hubbel was digging and found jawbones and more than 200 sharp teeth. He is an expert in fossilized sharks, so he recognized the teeth right away. They were shaped like triangles and came to a very sharp point. They belonged to a distant relative of the great white shark!
Why is Hubbell's discovery surprising?
Researchers were digging in the desert when they came across a fossilized cactus leaf buried in the sand.
Environments can change over time. Some places stay the same. What might this environment have been in the past?
Gordon Hubbell and a crew of fossil hunters were digging holes in the desert of Peru in 1988. This desert is one of the driest places on Earth. It gets almost no rain. Hubbel was digging and found jawbones and more than 200 sharp teeth. He is an expert in fossilized sharks, so he recognized the teeth right away. They were shaped like triangles and came to a very sharp point. They belonged to a distant relative of the great white shark!
Why is Hubbell's discovery surprising?
How does a fossil tell us about an organism that lived in the past?
Gordon Hubbell and a crew of fossil hunters were digging holes in the desert of Peru in 1988. This desert is one of the driest places on Earth. It gets almost no rain. Hubbel was digging and found jawbones and more than 200 sharp teeth. He is an expert in fossilized sharks, so he recognized the teeth right away. They were shaped like triangles and came to a very sharp point. They belonged to a distant relative of the great white shark!
How could Hubbell "prove" that these teeth were from a relative of the great white shark?
Fossils can provide evidence about organisms. Which statement is something fossils CANNOT tell us about a plant or animal?
What is an organism? Example: Fossils can be used to learn about organisms that lived during a time humans were not around to study them.