![](http://www.alamy.com/thumbs/6/26942FC2-EEDC-4FFB-AA29-0FEDA17F8446/2AD67J4.jpg)
Biologist takes water for examination
Photo biologist takes water for examination in pond
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Photo credit: © Zoonar/Sergey Mironov/ Sergeymironov.com / Alamy / Afripics
License: Licensed
Model Released: No
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