Looking for an innovative way to teach your students about Charles Darwin’s theory of evolution? Comparative physiology experiments are a great approach to explore this central concept in biology.
In honor of Darwin Day on February 12, our biology team has developed an experiment that investigates the comparative physiology of snails and fish. This experiment is an excellent way for students to learn about evolutionary biology concepts.
In this experiment, students measure the respiration rate of an aquatic snail, a goldfish (Carassius auratus), and a Betta fish (Betta splendens) using a small respiration chamber and a Go Direct® Optical Dissolved Oxygen Probe.
Get the experiment overview and download the instructions.
More Evolution-Related Experiments from Investigating Biology through Inquiry
- “Evolution of Cellobiase in Fungi” using the Go Direct SpectroVis® Plus Spectrophotometer
- “Introduction to Molecular Evolution”
- “Evolution of Yeast” using the Go Direct CO2 Gas Sensor
Other Evolution-Related Experiment Ideas