Jess Thomson is a Newsweek Science Reporter based in London UK. Her focus is reporting on science, technology and healthcare. She has covered weird animal behavior, space news and the impacts of ...

GRAND CANYON (KTNV) — Grand Canyon officials are getting a financial boost to help protect several fish species in the Colorado River. The park recently received $258,000 in funding from the Inflation ...

The number of juvenile endangered fish recovered in the Colorado River declined dramatically after officials flooded the Grand Canyon in an effort to aid them and their fragile ecosystem. But ...

LAS VEGAS — Researchers in Grand Canyon National Park have discovered a prehistoric-looking sucker fish once thought to be extinct from the area. The fish, known as the razorback sucker, is the first ...

FLAGSTAFF - A fish characterized by a long, high sharp-edged hump behind its head had been considered extinct from Grand Canyon National Park until researchers sampling for it in the lower part of the ...