BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 20, Problem 2SL
Summary Introduction

To determine:

An argument for or against the strategy given about the pizzly bear, whether or not there is an ethical obligation to intervene if the human's actions are contributing to the breeding behavior. If polar bears have a better chance of avoiding extinction and whether the evidence that polar bears and grizzlies had interbred in the past change these answers.

Introduction:

A pizzly bear is the offspring of a polar bear and a grizzly bear. DNA evidence confirms their existence. Scientists have hypothesized that due to the warmer condition, some of the polar bears are staying on the mainland. Some people believe that the pizzly bear will be killed as they are less fit than either polar bear and grizzlies.

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In the United States, the rare red wolf (Canis lupus) has been known to hybridize with coyotes (Canis latrans), which are much more numerous. Although red wolves and coyotes differ in terms of morphology, DNA, and behavior, genetic evidence suggests that living red wolf individuals are actually hybrids. Red wolves are designated as an endangered species and hence receive legal protection under the Endangered Species Act. Some people think that their endangered status should be withdrawn because the remaining red wolves are hybrids, not members of a "pure" species. Do you agree? Why or why not?
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