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Scheduled Maintenance:
Our website will be unavailable starting Friday, April 10 at 5:00 PM CST and will be back online Monday, April 13 at 6:00 AM CST.
We appreciate your patience.
Free Shipping on orders over $199
Publication 12517
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What types of organisms live in your local fields and streams? What are the populations of these organisms? Use a sampling square to find out!
