Mountain gorilla chewing plant in wild (IMAGE)
Caption
Mountain gorillas spend much of their time chewing and spitting out plants. Veterinary scientists found that collecting and analyzing the discarded plants can help them detect viruses.
Credit
Tierra Smiley Evans/UC Davis
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Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted.
License
CC BY-NC-ND