Previously, scientists had thought that creatures living in the southernmost regions of the planet would have been in a less perilous position during the mass extinction event
Using a scanning electron microscope to examine minute fossils, researcher finds circular drill holes that may have been formed by an ancient relation of Vampyrellidae amoebae
Ophthalmologists find retinal bleeding, abnormal blood vessel development and lesions in infants born to mothers who showed signs of the viral infection during pregnancy