What is Edna? That’s the question NCIS fans had after Season 23 Episode 17. Now, TV Insider has an exclusive sneak peek of the Tuesday, April 28, episode, and it shows Kasie ( Diona Reasonover) ...

Plus, what's coming up in the finale?

Diona Reasonover gives her take on Kasie's invention becoming a weapon, and how LL Cool J has become her mentor.

Researchers and agencies worldwide are advancing environmental DNA (eDNA) techniques to detect species, monitor biodiversity, and forecast ecosystem changes. New initiatives aim to integrate genetic ...