Invisible fossils of the first animals

Though the first animals on Earth didn’t leave behind rock fossils, scientists can still find these ancient creatures by observing their invisible molecular fossils

By Douglas Fox, 00:00 AM February 4, 2009

This stone core was drilled from an ancient seabed that now lies nearly 3 miles underground. The dark color comes from oil left behind by bacteria and animals that lived over 500 million years ago. The white color comes from salt left behind by the sea.

This stone core was drilled from an ancient seabed that now lies nearly 3 miles underground. The dark color comes from oil left behind by bacteria and animals that lived over 500 million years ago. The white color comes from salt left behind by the sea.

Petroleum Development Oman

Gordon Love walked past the warm waters of the Arabian Sea as they lapped on a white sandy beach in the country of Oman. He entered a metal warehouse and walked past row after row of hallways lined with sliding m...

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