Conodonts are among the first vertebrates to have evolved mineralized tooth-like structures. Among these, the so-called P₁ elements are known to have been used to break down food and display a wide ...

An introduction to primary producers in the sea : who they are, what they do, and when they evolved / Paul G. Falkowski and Andrew H. Knoll -- Oceanic photochemistry and evolution of elements and ...

Why did humans evolve the eyes we have today? While scientists can't go back in time to study the environmental pressures ...

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