Wisconsin Gov. Scott Walker (center) talks about recent Republican Party gains and the road ahead for the GOP as Indiana Gov. Mike Pence (left) and Texas Gov. Rick Perry listen during a Wednesday press conference at the Republican governors' conference in Boca Raton, Fla. J Pat Carter/AP hide caption

itoggle caption J Pat Carter/AP

Giant African land snails, like this one found in Florida in 2011, eat almost any plant. Florida officials are determined to eradicate the invasive pest. Reuters/Landov hide caption

itoggle caption Reuters/Landov

Gary Morse, with wife Sharon, in 1999. Morse transformed a mobile home park in Florida into The Villages, a retirement community of more than 100,000 residents. Stephen M. Dowell/Orlando Sentinel hide caption

itoggle caption Stephen M. Dowell/Orlando Sentinel

This encampment under the Julia Tuttle Causeway in Miami, shown in 2008, was cleared out by authorities in 2009. It was home to sex offenders who were unable to find places where they were permitted to live under Miami-Dade County's strict residency law. Although this makeshift community was broken up, homeless sex offenders continue to camp out in other areas of the county. David Adame/AP hide caption

itoggle caption David Adame/AP

A puppy waits at an adoption event in Miami last year. The city is now considering a ban on the sale of puppies in retail pet stores. Cities and towns in several states have passed similar bans, aimed at cracking down on substandard, large-scale puppy breeders. Wilfredo Lee/AP hide caption

itoggle caption Wilfredo Lee/AP

Democrat Charlie Crist, a former Republican governor of Florida (left), and Rick Scott, the current Republican governor of Florida, listen to the moderators during a gubernatorial debate on Friday. The two are facing off in a tight race that's fueling a barrage of negative campaign ads. Lynne Sladky/AP hide caption

itoggle caption Lynne Sladky/AP