Polar Bear Evolution Was Fast and Furious

This informational text resource is intended to support reading in the content area. New evidence shows that polar bears split off from their closest ancestors, brown bears, less than 500,000 years ago. This is a very short time for a large mammal to evolve. In that time, polar bears have evolved many adaptations to their specialized lifestyle, including the ability to process the large amount of fat in their seal-based diet. This is shown by their unique DNA sequence of genes related to fat processing and heart development.

Resource ID#: 70231 Type: Text Resource

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Direct Link: http://news.sciencemag.org/biology/2014/05/polar-bear-evolution-was-fast-and-furious

General Information

Subject(s): English Language Arts, Science

Grade Level(s): 9, 10

Intended Audience: Educators

Resource supports reading in content area:Yes
Freely Available: Yes

Keywords: informational text, text complexity, evolution, polar bear, brown bear, bears, genome, genome sequencing, APOB

Instructional Component Type(s): Text Resource

Resource Collection: General Collection

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