ERIC Identifier: ED402155 Publication Date: 1996-09-00
Author: Haury, David L. Source: ERIC Clearinghouse for
Science Mathematics and Environmental Education Columbus OH.
Alternatives To Animal Dissection in School Science Classes.
Until recently, one of the most expected and accepted experiences among
students in biology classrooms of the United States has been the dissection of
vertebrate animals, from frogs and mice to cats and fetal pigs. Indeed, it has
been said that "the odor and distaste the dissection experience evokes have been
among the most pervasive memories of secondary school science for more than a
century" (Texley, 1992). It was reported in 1988 (Orlans) that 75-80% of the
country's biology students dissect frogs.
Resistance to animal dissection grew during the past decade, however, with
many objections being raised. Ever since the California Supreme Court supported
the refusal of a student to dissect a frog in a high school biology class in
1987 (Holden, 1990), there has been a steady decline in dissection (Texley,
1992). Though some have characterized the practice of dissection in public
schools as a political and ideological issue (Gilmore, 1991), others have
expressed concerns beyond conscientious objection by students and parents on
moral grounds. Concerns range from inhumane treatment of animals by the supply
industry and the depletion of natural populations of affected species to
concerns about the emotional responses of students who are "turned off" to
biology because of a dislike of dissection (Orlans, 1991). It has been pointed
out, though, that some essential lessons can be learned through emotional
response, such as a healthier regard for life and an increased awareness and
appreciation of individual variation (Berman, 1984).
Of primary importance to schools is whether core curricular goals are best
served by the inclusion of animal dissection in general life science courses. It
has been claimed that time given to dissection comes at the expense of more
important topics (Orlans, 1991). In a study involving over 7,000 science
teachers it was determined that the key areas of understanding in modern biology
include cell biology, energy use, genetics, evolution, systems, ecology, animal
behavior, taxonomy, and the relationship of science to technology and society
(Texley, 1992). The detailed study of individual animals is conspicuously absent
from this list. On the other hand, a major document in the current reform
movement in science education, Benchmarks for Scientific Literacy (Project
2061,1993), recommends that "by the end of the 8th grade, students should know
that similarities among organisms are found in internal anatomical features" (p.
In the minds of some teachers, dissection provides students with a unique
opportunity to observe directly the internal structure of animals while also
learning that textbook images do not reflect the variation found in nature
(Morrison, 1992). The pros and cons of animal dissection have been presented
(Lord & Moses, 1994; Riechard, 1993), with some asserting that typical
alternatives are no substitute for dissection (Bowd, 1993; Offner, 1993). Others
speak against dissection (Shapiro, 1992), emphasizing the negative memories and
messages associated with the experience. Students, however, may not be deeply
concerned about the dissection issue (Holden, 1990; Kinzie, Strauss, & Foss,
1993). Both the National Science Teachers Association (NSTA, 1986) and the
National Association of Biology Teachers (NABT, 1990) have responded to the
dissection issue by acknowledging the appropriateness of dissection in certain
cases, but emphasizing the need to foster a respect for life and find
alternatives to dissection wherever possible. To aid teachers in making
decisions and implementing alternatives, NABT has produced a valuable handbook,
The Responsible Use of Animals in Biology Classrooms Including Alternatives to
Dissection (Hairston, 1990). The handbook presents the pros and cons of
dissection, an overview of teaching objectives associated with dissection,
questions that teachers should ask themselves, guidelines for the use of live
animals, and suggested alternatives to dissection.
Many have proposed substituting the use of
computer simulations, realistic models, multimedia presentations, anatomical
overlays, and butcher shop "parts" in place of conventional dissection. More
creative alternatives include the use of marine "specimens" from the supermarket
(Colby, et. al, 1995), use of PlayDoh(TM) to study brain anatomy (Wilson &
Marcus, 1992), and use of interactive videodisc simulations (Strauss & Kinzie, 1991). The rapidly expanding resources of the World Wide Web also
include many new resources on the Internet (please see the list of related home
pages at the end of this Digest). Anzovin (1993) made the point that many
alternatives to dissection are cleaner and cheaper than dissection, allow
students to learn at their own pace, and reduce safety considerations.
RESPONDING TO CONSCIENTIOUS OBJECTIONS
For many, dissection
truly is a moral issue. Snyder and others (1992) have offered a strategy for
addressing the concerns, including creation of an Animal Care and Use Committee
and developing action plans for affected classes. Readers interested in gaining
more information about alternative views may wish to obtain an Alternatives to
Dissection file from the Humane Society of the United States. The packet
includes the Society's guidelines for the use of animals in schools, listings of
studies and statements about the dissection issue, and alternative activity
plans. The Ethical Science Education Coalition has also produced a dissection
policy and a Frog Fact Sheet that includes both background information and an
extensive reading list. The Coalition also publishes an extensive directory,
Beyond Dissection: Innovative Tools for Biology Education, of materials
providing alternatives to dissection and other traditional classroom activities.
Addressing a related issue, the Johns Hopkins University Center for Alternatives
to Animal Testing produces a middle-school newsletter, CAATALYST, that presents
information in an anime comic book format (World Wide Web access at
WORLD WIDE WEB RESOURCES
-The Interactive Frog Dissection
Offers an interactive frog dissection designed for use with high school
biology classes. For a paper on the purposes and design of the on-line tutorial,
Offers a rotating transparent frog movie and other image data.
-The Froggy Page
Offers guides, pictures, sounds, background information, and links to other
sites with information about frogs and other amphibians and reptiles.
Ethical Science Education Coalition, 167 Milk
Street #234, Boston, MA 02109-4315 [Phone: (617) 367-9143]
Johns Hopkins University Center for Alternatives to Animal Testing, 111
Market Place, Suite 840, Baltimore, MA 21202-6709 [Phone: (410) 223-1693]
National Association of Biology Teachers, 11250 Roger Bacon Drive, No. 19,
Reston, VA 22090-5202 [Phone: (703) 435-5582]
National Science Teachers Association, 1840 Wilson Boulevard, Arlington, VA
22201-3000 [Phone: (703) 243-7100]
The Humane Society of the United States, Youth Education Division, P.O. Box
362, East Haddam, CT 06423-0362 [Phone: (203) 434-8666]
Anzovin, S. (1993). The cutting edge. Compute,
Berman, W. (1984). Dissection dissected. The Science Teacher, 51(6), 42-49.
Bowd, A.D. (1993). Dissection as instructional techniques in secondary
science: Choice and alternatives. Society and Animals, 1(1), 83-89.
Colby, J.A. and others. (1995). Supermarket marine biology. The American
Biology Teacher, 57(1), 37-39.
Hairston, R.V. (Ed.). (1990). The responsible use of animals in biology
classrooms including alternatives to dissection. Reston, VA: National
Association of Biology Teachers. [ED 340 595]
Gilmore, D.R. (1991). Politics & prejudice: Dissection in biology
education, Part I. The American Biology Teacher, 53(4), 211-213.
Kinzie, M.B., Strauss, R., & Foss, J. (1993). The effects of an
interactive dissection simulation on the performance and achievement of high
school biology students. Journal of Research in Science Teaching, 30(8),
Lord, T., & Moses, R. (1994). College students' opinions about animal
dissections. Journal of College Science Teaching, 23(5), 267-70.
Morrison, A.R. (1992). What's wrong with 'animal rights.' The American School
Board Journal, 179(1), 20-23.
Offner, S. (1993). The importance of dissection in biology teaching. American
Biology Teacher, 55(3), 147-49.
Orlans, F.B. (1988). Debating dissection. The Science Teacher, 55(8), 36-40.
Orlans, F.B. (1991). Use of animals in education: policy and practice in the
United States. Journal of Biological Education, 25(1), 27-32.
National Association of Biology Teachers. (1990). The responsible use of
animals in biology classrooms, including alternatives to dissection. The
American Biology Teacher, 52(2), 72.
National Science Teachers Association. (1986). Code of practice on use of
animals in schools. The Science Teacher, 53(1), 172.
Project 2061. (1993). Benchmarks for scientific literacy. New York: Oxford
University Press. [SE 058 900]
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