Salamanders originate as metamorphosed with a biphasic lifestyle as shown by the palate shape and several non-shape features associated with the vomerine teeth, with diverse ecological types displayed in living species achieved in the Early Cretaceous.

Primates have co-opted a viral gene to produce an envelope protein that prevents infection by the HERV-T virus and likely contributed to the extinction of this virus.

The characterization of ancient B19V and HBV genotype A4 viruses circulating during Colonial epidemics provides new insights into the pathogens that were introduced to the Americas after the European colonization.

Endogenous virus sequences in the genomes of modern mammals reveal the global spread of an ancient virus lineage, including frequent interspecies transmission, adaptation, and emergence spanning several million years of mammalian evolution

The reconstitution of a functional envelope protein from an extinct hominid retrovirus reveals its receptor and an ancient host defense that may have led to the extinction of the virus.

Analysis of viral DNA from human remains suggests that the transatlantic slave trade may have introduced new pathogens that contributed to the devastating disease outbreaks in colonial Mexico.

Viruses drive adaptation at the scale of the whole proteome and not only in antiviral proteins in mammalian hosts.

Virtual investigation of the 3.67-million-year-old skull of 'Little Foot' using synchrotron radiation reveals histological details of Australopithecus dental and bone tissues.

Well-preserved fossils reveal an extreme morphological specialization of fly larvae, and broaden our understanding of the diversity of ectoparasitism in Mesozoic insects.