This Month in Photo of the Day: National Geographic Magazine Features

Kayaks crowd Three Sisters Springs, where people and manatees maintain a controversial coexistence. To reach the warm water they need to survive winter, manatees often must run a gantlet of kayakers and snorkelers eager to interact with the marine mammals.

See more pictures from the the April 2013 feature story "When Push Comes to Shove."

See where Florida manatees roam »
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