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Diversification II: South Of The Border

18 minutes 5 seconds

Now Playing As: Captioned (English) (change)

Less familiar to residents of the US and Canada are several junco groups that inhabit the highlands of Mexico and Central America. In this segment, researchers from around the world travel to remote high elevation habitats to study unique junco groups. They explore the concepts of endemism, geographic isolation, and the role of genetic data in classifying species. Part of Ordinary Extraordinary Junco (Chapter 4).

Media Details

Runtime: 18 minutes 5 seconds

Topic: Science
Subtopic: Animal Behavior, Birds, Science Experiments, Science Methods
Grade/Interest Level: 9 - 12
Standards:

Release Year: 2012
Producer/Distributor: Department Of Biology, Indiana University
Series: Ordinary Extraordinary Junco
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Teacher Guide Student Questions Series DVD

Still image from: Ordinary Extraordinary Junco: Remarkable Biology From A Backyard Bird!

Bird with white belly, dark back and wings perched on a branch in a thicket. Caption: People are more like birds than we thought.

Man in suit and bowtie with a blackboard behind him. Blackboard shows two sets of birds in cages, one with lights, one without. Caption: This pioneering experiment would make Rowan famous.

A bird's nest in the ground with a baby bird, beak open. Caption: There will be winners and losers each year.

Map of North and Central America. Different areas of the map are highlighted to indicate the habitat areas and 5 birds are superimposed on the map. The highlighted areas are concentrated in central Mexico, the west coast of the United states, and much of Canada and Alaska. Caption: they changed eye color from yellow to dark.

A small bird perched on a person's hand. It is gay with some brown on the wings. Caption: It's much more olive-gray, duskier gray on the head.

Bird perched in a tree. Caption: That would be evidence of habitat adaptation.

A small bird perched on a plank. Caption: Somehow, there was a critical mass action that took off.

Closeup of a bird on a branch. The bird has a light-colored body and a dark head. Caption: where they're evolving right before our eyes,