An unusual congregation of mating manatees reportedly caused a traffic jam in Tampa Bay, Florida last Friday. Approximately a dozen of the creatures were spotted by commuters offshore of Courtney Campbell Causeway, reports Fox 13. The news channel says it received several calls from drivers commuting via the road—many of whom pulled over to watch the spectacle—reporting a possible whale in distress. On arrival, a news helicopter discovered the herd of manatees engaging in a rarely seen reproduction practice known as a "mating ball." This event, which ABC Action News reports is sighted an average of once every three to...