What is the chemical agent injected into prey by the water bug to break down internal tissues into a slurry?

Answer

Proteolytic saliva

The water bug injects a powerful, proteolytic saliva into the secured victim. This substance acts as a digestive enzyme, breaking down the interior tissues into a pre-digested slurry which is then consumed.

What is the chemical agent injected into prey by the water bug to break down internal tissues into a slurry?
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