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Scientists Tag 400 Monarchs to Track Migration Patterns

11/18/2025

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Summary

Story summary

Scientists are tracking the migration of monarch butterflies across North America and have tagged over 400 monarchs this year.
Researchers use a lightweight solar-powered radio tag weighing 500 to 600 milligrams and costing $200.
The tracking of monarchs from Ontario to central Mexico could enhance understanding of the life cycles of various declining insect species.
Tracking relies on a cellphone app developed by Cellular Tracking Technologies.

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Story summary

Scientists are tracking the migration of monarch butterflies across North America and have tagged over 400 monarchs this year.
Researchers use a lightweight solar-powered radio tag weighing 500 to 600 milligrams and costing $200.
The tracking of monarchs from Ontario to central Mexico could enhance understanding of the life cycles of various declining insect species.
Tracking relies on a cellphone app developed by Cellular Tracking Technologies.