The mosquito bites one person or animal with malaria, takes the parasite on board, flies off to another victim, bites and implants the parasite, which proceeds to multiply like crazy, sickening if not killing its victims.

NPR: Altered Mosquitoes May Save Humans From Malaria

The crazy ants, officially called "Tawny crazy ants, " are omnivores that can take over an area by both killing what's there and starving out what they don't kill, said Ed LeBrun, a research associate with the Texas invasive species research program at the Brackenridge Field Laboratory in the College of Natural Sciences.

CNN: 'Crazy ants' a threat in southern U.S.