Browsing Tag
DNA analysis
4 posts
Woolly Mammoth: Genetic Insights into Their Extinction
Genomic challenges, environmental shifts, human impact, and more!.. Find out about the genetic mysteries behind the woolly mammoth’s demise.
Syphilis-Similar Diseases in Pre-Columbus America, New Study Shows
Researchers at the Universities of Basel and Zurich have made a historic finding, revealing the genetic material of the pathogen Treponema pallidum in the remains of individuals who died in Brazil 2,000 years ago. This marks the earliest known evidence of the pathogen, demonstrating that treponematoses, akin to syphilis, were afflicting humans long before Columbus's discovery of America. The discovery offers a unique glimpse into the ancient prevalence of diseases, reshaping our understanding of their impact on human populations throughout history.
Giant Mammals Declined Due to Human Impact, Not Climate Change
A recent study from Aarhus University supports the conclusion that climate alone cannot account for the significant decline in the population of large mammals over the past several thousand years. This finding adds to the ongoing scientific debate about whether human activities or climate changes are the primary drivers behind the observed decline in large mammal populations.
DNA from Snow Tracks Reveals Polar Bears’ Secrets: A New Method to Monitor the Threatened Species
Polar bears, symbolic of the Arctic's pristine wilderness, remain enigmatic and at risk. The imperative for their conservation demands meticulous population monitoring. However, due to the elusive nature of polar bears, obtaining essential data regarding population size and connectivity between populations proves challenging. In an effort to bridge this information gap, scientists have introduced a novel approach: DNA analysis utilizing skin cells left behind in the bears' imprints on the snow.