Preserved animal specimens—often referred to as “wet specimens”—have long been a staple of biology and anatomy classes. From frogs and fetal pigs to sheep brains and cow eyes, these materials help teach students about the structure, function and complexity of living organisms. However, as awareness of animal ethics grows, schools have a responsibility to ensure that educational value does not outweigh ethical concerns.
Many professional scientific organizations support dissection when done responsibly. The National Science Teaching Association (NSTA), for example, states, “NSTA encourages districts to ensure that animals are properly cared for and treated humanely, responsibly, and ethically. Ultimately, decisions to incorporate organisms in the classroom should balance the ethical and responsible care of animals with their educational value.” (NSTA Position Statement)
Educators have often emphasized that hands-on interaction helps students grasp anatomical concepts in ways that diagrams cannot fully provide. At the same time, animal welfare advocates have raised concerns about how preserved specimens used in classrooms are obtained.
Many animal advocacy organizations, such as the National Humane Society, have pointed out that some animals used in education may be bred and raised specifically for dissection, prompting questions about necessity, transparency and humane treatment. The many modern alternatives—including 3D models, virtual dissections, detailed videos of real biological autopsies—may achieve similar learning outcomes without the same ethical concerns.
Our school primarily purchases preserved specimens from Nebraska Scientific. When asked about their sourcing practices, a representative from Nebraska Scientific said the company obtains specimens as by-products of meat-processing facilities, meaning the animals are not killed solely for classroom use. However, the company declined to disclose the specific facilities involved, for confidentiality.
While confidentiality is common in commercial supply companies, limited transparency can raise questions for educators and students who want a clearer verification of ethical sourcing. Without access to detailed information, schools must rely largely on supplier assurances, contributing to a broader national discussion about accountability and ethics in science education materials.
Students also play an important role in the conversation. Several U.S. states have “student choice” policies, allowing science students to opt out of dissections for ethical or personal reasons. These policies respect individual beliefs, while still maintaining educational standards. They also encourage teenagers to investigate ethical questions and form their own informed opinions.
Ultimately, the conversation around wet specimens in classrooms reflects a broader, constantly evolving question: how should science education balance hands-on learning with evolving ethical values?
While dissections continue to play a major role in many schools, including FHS, the growing availability of alternatives and increased awareness of animal welfare suggest that the discussion surrounding preserved specimens is far from settled.
As science education evolves, so does the debate over how best to teach it responsibly, effectively and ethically.
