A newly discovered 460-million-year-old trilobite showed signs of being shaped and flattened—the first indication that ancient Romans purposely collected and modified the tiny fossils.

Ancient stone tools found on the Indonesian island of Sulawesi represent the oldest evidence for humans living there 1 million years ago.

The tools include sharp-edged stone fragments that the ancient humans made from larger pebbles likely taken from nearby riverbeds. Previous research suggested that the Wallacea archipelago was occupied from at least 1.