Saturday citations: Two T. rexes and new exercise guidance that scientists are not calling 'easy'

Researchers from UC Santa Barbara's Benioff Ocean Science Laboratory (BOSL) and local partners in San Francisco have unveiled new technology in their ongoing efforts to prevent whales and oceangoing vessels from colliding in and near the busy San Francisco Bay.

A new study has shown that messages of hope can be effective in promoting creative problem-solving around sustainability. Experts from the University of Nottingham's School of Psychology developed a new measure of climate creativity that indicates that positive emotions have a different effect to negative emotions in promoting problem solving in undertaking climate action. The study has been published in the Journal of Environmental Psychology.

A new Yale study identifies a distinct species of eyeless cavefish, a discovery that challenges long-held conventional wisdom that caves and other subterranean ecosystems are evolutionary dead ends.

A colossal new sea predator named Tylosaurus rex has been identified from fossils found in Texas, revealing a brutal 43-foot-long hunter that ruled ancient oceans 80 million years ago. The discovery not only introduces one of the biggest mosasaurs ever known, but also shakes up long-standing ideas about how these marine reptiles evolved.