What are Fossils?

Susan and Josh tell us what fossils are and how they are formed.

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[oshiagarwal]

I am watching all of this playlist ...and this is the coolest thing I saw on internet today.
Amazing videos🤩

[alittax]

Excellent, thank you! I didn't know that scientists aren't using the remains of the animal to determine the fossil's age, but the sedimentary layers.