The oldest fossils in the world

Strange-looking “fossil echoes” found in the Arabian Peninsula go back more than 635 million years

In the latest issue of Nature, researchers reveal the earliest evidence of animals ever found. The fossils, which are more than 635 million years old and predate even dinosaurs, are so ancient they look more like spongy compounds than bones. They found the “fossil echoes” while examining sediment mined by an oil company in the Arabian Peninsula.