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Selective Breeding - Man's Best Friend

How humans have selectively bred dogs for specific jobs
by

Beth Topinka

on 17 February 2014

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Transcript of Selective Breeding - Man's Best Friend

Why are dogs referred to as
"Man's Best Friend"
Selective Breeding
The breeding of a male and a female based on the most desirable traits of each parent
As we watch video clips,
fill out your organizer
Check off boxes for key traits.

Fill in additional information about a dog's
PHYSICAL FEATURES
that help it do its job. Example: flexible spine

Also write down any
INNATE BEHAVIORS

(instincts) that help a dog do its job
Examples: sight stalking, chasing
Saluki
Sled Dog
http://www.pbs.org/wnet/nature/lessons/mans-best-friend/video-segments-dogs-that-changed-the-world/4803/
Brainstorm different ways that dogs help people
So how did we end up with over 170 different dog breeds?
Dogs and Wolves share a now-extinct common ancester that lived over 9,000 years ago
What animal did all dogs descend from?
Border Collie
+
=
http://abcnews.go.com/blogs/headlines/2013/01/labradoodle-mistaken-for-lion-prompts-911-calls/
Problems
Selective Breeding must be done very carefully and responsibly.

What problems do you think could occur if close relatives are cross-bred?
http://www.pbs.org/wnet/nature/lessons/mans-best-friend/video-segments-dogs-that-changed-the-world/4803/
This class is going to the dogs!
http://www.pbs.org/wnet/nature/episodes/dogs-that-changed-the-world/video-speedy-saluki/1326/
Full transcript