The cicadas are back – well, some of them. Brood XIV has begun to emerge in some eastern U.S. states. The brood emerges every 17 years, and is considered the second largest periodical cicada ...

With a body length of around 26.5 millimeters and a wingspan of 68.2 millimeters, the adult female cicada from the 47-million-year-old oil shale of the Messel Pit has been almost completely preserved.

A massive brood of periodical cicadas will emerge soon across the eastern United States, with the notoriously raucous springtime insects due for their 2025 appearance. Known for their buzzing ...