CAPE CANAVERAL, Fla. – A male Anhinga perches in a shrub in the Merritt island National Wildlife Refuge, which borders NASA's Kennedy Space Center in Florida. Anhingas inhabit freshwater ponds and swamps with thick vegetation. They range from the Atlantic and Gulf coasts from North Carolina to Texas, the Mississippi Valley north to Arkansas and Tennessee, and south to southern South America. They are also referred to as snakebirds because their body is submerged when swimming, showing only the head and long, slender neck above water. The center shares a boundary with the refuge that includes salt-water estuaries, brackish marshes, hardwood hammocks and pine flatwoods. The diverse landscape provides habitat for more than 310 species of birds, 25 mammals, 117 fishes and 65 amphibians and reptiles. Photo credit: NASA/Jim Grossmann