From crawling to inching, evolutionary biomechanics of caterpillar locomotion

This project explores how different species of caterpillars—despite all being soft-bodied—have evolved unique ways of crawling and climbing. Some species use many prolegs for support, while others, like inchworms, have lost prolegs and move with dramatic bridging motions. Using high-speed video and biomechanical analysis, we will study how body size, proleg arrangement, and locomotion style are related. By integrating biomechanics with evolutionary biology, we aim to understand how soft-bodied locomotion has evolved and what physical constraints shape these movements. This research is perfect for students interested in animal biomechanics, evolution, or experimental fieldwork and lab analysis!

Name of research group, project, or lab
Trimmer Lab (Neuromechanics and Biomimetic Devices Laboratory)
Why join this research group or lab?

This research is based in a fun lab that emphasizes curiosity and independence. We have a very wide range of facilities that includes a full neurophysiology suite, cell culture and molecular tools and a "project room" for building whatever you need for your experiments. Although the live animal work is focused on the insect Manduca sexta, we also encourage students to think about the wider implications of their research. With this in mind ,we build soft robots that can squeeze through difficult terrain and grow insect cells in culture for possible use as living actuators or food production. 

Logistics Information:
Project categories
Physiology, Neurobiology, and Biomechanics
Student ranks applicable
2nd year undergraduate
3rd year undergraduate
4th year undergraduate
Masters
Student qualifications

To be successful in the laboratory students will need to be highly motivated and dedicate sufficient time to do their experiments. Once trained, you will be given considerable independence, but we expect you to take ownership of the work, keep detailed records, and to be responsible for getting results. Students will be treated as full members of the lab team and will share maintenance responsibilities and must attend the weekly lab meetings. Most of our work requires fine motor skills but we will train you in the use of the appropriate tools including microscopes and micromanipulators. For the research on Manduca you will need to be comfortable with handling caterpillars and moths and willing to perform experiments on living animals and tissues.

Hours per week
10-15hrs/wk
Compensation
Unpaid - Course Credit
Number of openings
1
Techniques learned

Imaging and video tracking

Behavioral analysis

Microdissection and handling living tissue

Project start
January 2025
Contact Information:
Mentor
barry.trimmer@tufts.edu
Principal Investigator
Name of project director or principal investigator
Barry Trimmer
Email address of project director or principal investigator
barry.trimmer@tufts.edu
1 sp. | 0 appl.
Hours per week
10-15hrs/wk
Project categories
Physiology, Neurobiology, and Biomechanics