By the Viking Age, cats with a new genetic haplogroup, IV-D, show up in York, Orkney, and even Galway, Ireland. The Norse ...

A new comparison and analysis of the genomes of species in the genus Malus, which includes the domesticated apple and its wild relatives, revealed the evolutionary relationships among the species and ...

A new comparison and analysis of the genomes of species in the genus Malus, which includes the domesticated apple and its ...

Cats sometimes catch and leave a "gift" for their humans. But why do cats give us dead mice, birds or other prey?