Zenolians have two hearts which quickly filter and purge the acidic blood that run through their bodies. As Zenolians developed acidic blood, they also grew a second heart which was used to filter it.
Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.