One of the most highly adapted scrub creatures,
the 4" sand skink occurs nowhere in the world except
six counties in central Florida. Like most members of the
skink family (Scincidae), the sand skink is a
smooth-scaled, shiny lizard that likes to stay out of
sight. The sand skink is on the U.S. list of Threatened
species. They are vulnerable to extinction because
of habitat loss as more and more of the Florida scrub is
cleared for development.
Sand
skinks move about by "swimming" eel-like
through the loose sand, where they pursue ant lions or
"doodlebugs" and other subterranean
invertebrates just below the surface. The
"sine-wave" trails they leave in the sand are
unique.
Sand skinks have many specialized adaptations for sand swimming. The
whole body is streamlined. Their front legs are reduced
to useless vestiges with a single toe and fold tightly
against the body into tiny grooves. The hind legs aren't
much bigger (they have two toes). The snout is
wedge-shaped and the lower jaw is countersunk into the
upper. The eyes are reduced and there are no external ear
openings. The rare sand skink is one of Florida's most
remarkable animals!