8. Step 3. Release the animals. (Capture) mark – release – recapture
9. Step 4. Recapture a second sample and count the number of marked individuals. Note: ensure the animals had time to mix with the rest of the population before capturing again. (Capture) mark – release – recapture
10. Step 6. Estimate population size using the formula. (Capture) mark – release – recapture