Death and Drama Among the Cicada Killers

Death and Drama Among the Cicada Killers

Holliday, professor emeritus at Pennsylvania’s Lafayette College, who partners with Coelho on cicada killer research, adds, “I’ve only seen female velvet ants digging in known cicada killer nesting areas, so I don’t know what they do when they go down open burrows or dig down into closed ones.”.

Whales Help Explain the Evolutionary Mystery of Menopause

Whales Help Explain the Evolutionary Mystery of Menopause

A paper in PNAS reports evidence that supports this explanation, showing that killer whale grandmas who have stopped reproducing do a better job of helping their grandchildren to survive than grandmothers who are still having babies of their own.

The Future of Crime-Fighting Is Family Tree Forensics

The Future of Crime-Fighting Is Family Tree Forensics

The month before, the genetic genealogist had been hired by a forensic DNA company in Virginia called Parabon, to lead its new division devoted to long-range familial searching.