Tag Archives: rewrites

Adult and juvenile fossil specimens of Isostylomys laurdillardi, a giant rodent that lived in South America between 9 and 6.8 million years ago (Miocene epoch), have been found by paleontologists, raising questions about classification within the rodent family Dinomyidae. Isostylomys laurdillardi. Image credit: Andres Rinderknecht et al. Dr. Andres Rinderknecht …

New research suggests that smallpox may not be an ancient disease but a much more modern killer that went on to become the first human disease eradicated by vaccination. The findings appear today in the journal Current Biology. This transmission electron micrograph depicts a number of variola virions. Image credit: …