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The Evolution of Dogs

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Sarah Duplessis

on 9 January 2014

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Transcript of The Evolution of Dogs

35 million yrs ago
3 million yrs ago
50 million yrs ago
The Evolution of Dogs
From Wolf To Dogs

Ancestors & intermediate forms
The first dog-like creature was called the
Cynodictis
who looked like a mongoose like animal with a long muzzle.

The scientific name for the Dog is
Canis Lupus Familiaris.
Adaptations
Physical adaptations:
Long sharp teeth
Fur coats
Hunting dogs have webbed feet

Behavioural adaptations:
Catch prey at night

Wolf Adaptations
Thick coats
two layers of fur
barks and body language have meanings so they can communicate
Environmental conditions
Dogs have sharp teeth to grind food
In cold weathers and swimming in water, the fur coat helps warm them and even hunting dogs have webbed feet to help them to swim.
Background Information
The dog is a direct descendant of the Gray wolf. Dogs are domesticated wolves, mainly smaller and with shorter muzzles and smaller teeth.
Cynodictis
Bibliography
Seann Lenihann,"The Evolution And Natural History Of Dogs",Animalpeoplenews.org,np,np,web.

Dr.Karen Carr,"History Of Dogs",History for kids.org,np,np,web.

Remy Melina,"How Did Dogs Get To Be Dogs",Livescience.com,np,np,web.

Debra Durkee"What Adaptations Do Wolves Have", Ehow.com,np,np,Web,

Bob Strauss"Prehistoric Dogs",About.com,np,np,web



After the Eucyon, the first plus-sized wolf evolved shortly before the Pleistocene epoch. The most famous of these canines was the dire wolf.
Hesperocyon
This species originated around 40-35 million years ago in the late Eocene epoch.
Leptocyon
Shortly after the Hesperocyon the Leptocyon came along about 34-10 million years ago. It still had a fox like appearance and was not much bigger than the Hesperocyon.
The Eucyon
The Eucyon was the direct decesendent of the Leptocyon. The Eucyon was the last link in the chain of "prehistoric dogs" before the appearance of the canis.
The wolf
Full transcript