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Science News for April 30, 1998


Complicated Hip Surgery Benefits From 3-D Models

A study at Washington University School of Medicine found that 3-D models of the pelvis are more accurate than X-ray images in preparing surgeons to revise hip replacements. This added information helps with crucial planning stages for complicated surgeries, reducing complications and improving patient outcomes.

SourceWashU Medicine·JournalJournal of Computer Assisted Tomography·DateApr 30, 1998

Gene Study Shows Mammals Lived Before Extinction Of The Dinosaurs

A massive gene study suggests that mammals first evolved around 100 million years ago during the Cretaceous era, much earlier than previously estimated. The research used genetic data from over 10,000 species to infer origin dates, contradicting fossil-based estimates that linked mammal evolution to mass extinctions.

SourcePenn State·JournalNature·DateApr 30, 1998
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Bison Grazing Increases Biodiversity In Grasslands

Research reveals that bison grazing can increase plant species diversity in stressed grasslands, countering the effects of fire and fertilizer. By reestablishing grazing, scientists find that biodiversity can be retained in ecosystems impacted by human activities.

SourceU.S. National Science Foundation·JournalScience·DateApr 30, 1998