The red lynx or red lynx (Lynx rufus) is a North American mammal of the felid family, which appeared 1.8 million years ago. There has been debate as to whether this species should be cataloged as Lynx rufus or Felis rufus as part of a wider question of whether the four species of lynx should have their own genus or should they be within a subgenus of the genus Felis. The genus Lynx is currently accepted, and the red lynx is given the scientific name Lynx rufus in modern taxonomic sources. Johnson et al. report that lynxes shared a clade with the puma genus, the Bengal cat (Prionailurus), and the domestic cat (Felis) about 7.15 million years ago, and that they began to diverge from them about 3.24 million years. The red lynx is thought to have evolved from the Nordic lynx, which crossed into North America through Beringia during the Pleistocene, about 2.6 million years ago. The first wave, which moved towards the southern part of North America, was separated from the north by glaciers. This population evolved to become the modern red lynx around 20,000 years ago. A second wave arrived from Asia and settled in the north, evolving into the current Canadian lynx. Hybridization sometimes takes place between red lynx individuals and Canadian lynx individuals (see hybrid feline).
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