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When the ice melted the Holarctic clade spread south and east, while the Nearctic clade spread north, the two meeting in central Canada.

Aubry’s data reveal more than just the distribution of foxes in pre-history, it also elucidates the relatedness of the animals currently inhabiting North America (see: Taxonomy).

In their 1982 comparison of Red and Arctic ( comes from the Old World and dates to the early Pleistocene (between 1.8 and 1 mya) of Hungary and, in her 2008 study of Red fox dentition, Polish Academy of Sciences mammalogist Elwira Szuma suggested that the current line evolved either in Asia Minor or North Africa around this time.

As fox populations rose in Eurasia, those in North America appear to have dwindled.

Following the retreat of ice from the last ice age (the Late Glacial) some 15,000 years ago, many of the larger mammal species began to re-appear and extend their range northwards.

According to Derek Yalden’s fascinating book, , post-glacial remains of the Red fox have been found at several sites around Britain and suggest that this species re-appeared ‘naturally’ (i.e.

Recent work by Louis de Bonis and colleagues at the Université de Poitiers in France has suggested that the foxes and other canids first spread throughout Africa, before invading Europe via a trans-Mediterranean route towards the end of the Miocene.This radiation was probably in response to a vacant niche opening up as the borophagines started to die-out, and not only marked the birth of all the dog species we know today but also heralded the appearance of three modern-day genera in the south-western USA: (true foxes).In essence, it was around 10 mya that the fox lineage split from the wolf-dog lineage.(Back to Menu) Taxonomy: Many texts on fox natural history cannot help but draw comparisons between the fox and the cat and, if you spend any time watching them, you’re certainly struck by how similarly they behave: both have the same delicate, tripping gait; both stalk and pounce in much the same way; both sit and sleep with tails curled around their bodies; both twitch tail tips to allow young to practice hunting; both will use a paw to scoop unwary fish out of a garden pond.Anatomically, however, foxes have the large ears, the long pointed muzzle, the 42 teeth and the non-retractable claws (five on forefeet and four on hind) that we typically associate with dogs, although they do share the vertically-slit pupils commonly associated with cats (larger canids, such as wolves and domestic dogs, have round pupils).

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