LatestRare Brain Neurons Discovered to Synchronize Brain Activity and Promote Sleep
Health

Ancient DNA Reveals the 'American Cheetah' Was Not Actually a Cheetah

EFE
Ancient DNA Reveals the 'American Cheetah' Was Not Actually a Cheetah
Summary

A groundbreaking study published in Current Biology has revealed that Miracinonyx trumani, the extinct predator known as the 'American cheetah,' was actually closely related to the puma rather than the African cheetah. Led by researchers at the University of California, Santa Cruz, the investigation used ancient DNA analysis to determine the true evolutionary origins of this Pleistocene-era carnivore that roamed North America thousands of years ago. This discovery reshapes our understanding of prehistoric megafauna and demonstrates how genetic research can overturn long-held scientific assumptions about extinct species. The findings highlight the importance of molecular biology in paleontological research and provide new insights into the evolutionary relationships among ancient predators.

Originally published on

NotiCel

By EFE

Read full article(opens in new tab)

Fetched: September 13, 2026 at 10:01 AM

More news you might be interested in

View all
Rare Brain Neurons Discovered to Synchronize Brain Activity and Promote Sleep
Health
Insomnia

Rare Brain Neurons Discovered to Synchronize Brain Activity and Promote Sleep

Scientists have discovered that rare cortical neurons in the cerebral cortex can synchronize brain activity and promote sleep in mice, challenging the traditional understanding that sleep is controlled only by deep brain structures. For nearly a century, researchers believed that deep brain regions controlled sleep-wake cycles while the cerebral cortex—responsible for perception, thought, and memory—played a passive role. This groundbreaking finding suggests the cortex actively participates in initiating and maintaining sleep, potentially opening new avenues for treating sleep disorders. Understanding these mechanisms could lead to better treatments for insomnia and other sleep-related conditions.

2 hours ago
Medical Xpress
DR Congo's Worst Ebola Epidemic Surpasses 7,000 Cases
Health

DR Congo's Worst Ebola Epidemic Surpasses 7,000 Cases

The Democratic Republic of Congo is experiencing its worst Ebola outbreak on record, with confirmed cases exceeding 7,000 according to official government figures released Saturday. This represents a significant public health emergency requiring international attention and resources. Ebola, a rare but severe and often fatal illness caused by infection with one of the Ebola virus strains, spreads through direct contact with blood or body fluids. The scale of this outbreak underscores the critical importance of rapid response, infection control measures, and vaccination efforts to contain viral hemorrhagic fever outbreaks.

3 hours ago
Medical Xpress
Want to lower your risk of dementia? It doesn't involve a blood test
Health
Alzheimer's Disease

Want to lower your risk of dementia? It doesn't involve a blood test

New blood tests show promise in detecting Alzheimer's years before symptoms appear, but doctors caution they aren't ready for widespread use yet. The good news is you don't need to wait for a test to start reducing your dementia risk through proven lifestyle changes. Experts emphasize that actionable prevention strategies—including exercise, cognitive engagement, and cardiovascular health management—are available now and can make a meaningful difference. Rather than relying on predictive testing, focusing on modifiable risk factors offers immediate, evidence-based protection against cognitive decline.

3 hours ago
Medical Xpress
Training Nurses Like Athletes: UTA's Innovative Approach to Nursing Education
Health

Training Nurses Like Athletes: UTA's Innovative Approach to Nursing Education

The University of Texas at Arlington is revolutionizing nursing education by treating student nurses as "clinical athletes," implementing rigorous training methods similar to athletic programs. This innovative approach, experienced firsthand by students like Chandler Browning pursuing certification as a registered nurse anesthetist, aims to enhance clinical performance and preparedness. By applying athletic training principles to nursing education, the program develops nurses with superior physical stamina, mental resilience, and decision-making skills critical for high-pressure healthcare environments. This model promises to produce better-equipped healthcare professionals capable of delivering exceptional patient care across diverse clinical settings.

8 hours ago
Medical Xpress