Invasive tropical fish spreading through the Everglades has been characterized as “10 times worse than the python [invasion], but it’s all under water, so nobody knows about it.”

During July 2008, “residents in a Pinellas County [Florida] subdivision found about 30 [walking] catfish” migrating to and from various waterways in their neighborhood:

Walking catfish use storm drains to migrate:

Walking catfish “swarm” an apartment complex:

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