I am determined to keep pace with my athletic companion. Our trail meanders along fields of milkweed, weaves under ancient cedar boughs filtering the brightest sunshine and follows a fortress of greenbrier and young red maples. Around the corner, on the spillway between the salt marsh and pond, we stop short in surprise. Time is suspended; we revel in our good fortune. Cushioned in the damp grass, a brilliant jewel with a golden, sun-kissed shell, reminiscent of ancient hieroglyphs, sits steadfast. Its ruby red eyes scanning, seeming to analyze the scene, are its only sign of movement.
Turtles are the universal ambassadors to the reptile world. Though they were once common throughout the eastern United States, known to the Lenni-Lenape people as mëkëkii tahkox (talk-lenape.org), sighting an eastern box turtle (Terrapene c. carolina) these days is a rare treat! A solitary and transient reptile, this species inhabits deciduous woodland, meadow and wetland environments from southern Maine to northern Florida. In Delaware, it is illegal to move or keep an eastern box turtle without a permit. Luckily, our Cape Region is prime box turtle country, and we have opportunities to see them in the wild!
Each individual has a unique scale or scute pattern covering their shell. Male box turtles usually have red eyes and show the brightest splashes of colors on their top shell, the carapace, as well as on their head, neck and legs. The females often have brown eyes and subtle, muted colors. A kaleidoscope of reds, oranges and yellows brushed on a canvas of browns and blacks is a visual magnet for me! On the other hand, potential predators may interpret the flash as a warning to stay away. For a species that seems to prefer to fly under the radar, the earth tones and autumn colors are ideal for camouflage. The compact, 6-inch box turtle can burrow under damp soil or leaves and blend into the woodwork.
At first glance, the box turtle with a dome shell may resemble a tortoise, but it is not. This species is semi-terrestrial and closely related to pond turtles. Box turtles spend 90% of their time on terra firma, but they require access to fresh water. They need to routinely soak in a puddle or shallow pond. Built for walking, their strong feet have toes with claws to grip the ground, as well as some webbing to support a dog-paddle-like movement in the water. In still waters, the high shell adds buoyancy, and the turtle is able to float. As reptiles, box turtles are ectothermic, so their body temperature is directly linked to the air temperature. On summer days, box turtles are unable to tolerate high temperatures; they will be most active in the morning or after a rainstorm. A midday siesta in the mud or under a damp log offers welcome relief from the heat.
What's in a name? Granted, this turtle does look like an ornate gift. But in reality, when push comes to shove, only a box turtle can squeeze its soft body inside a compact armored fortress. How does this work? Turtles have a top and a bottom shell: a carapace and a plastron. In most turtle species, the side “bridges” connect the carapace to the plastron, forming a solid structure. An eastern box turtle has movement between the carapace and plastron with pliant ligament side bridges! To enhance this design most significantly, box turtles have a flexible hinge between two sections of their plastron. This hinge allows the plastron to fold into the carapace, which completely seals the two shells together. While I do not profess to test this claim, numerous sources assert that a butter knife will not fit between the shells. Ideally, a potential predator like a fox or raccoon will lose interest, or teeth, and move on!
Box turtles are intrepid travelers within a limited space. They are “homers rather than roamers,” using landmarks for orientation. If removed from its territory, an individual of this species will spend time and energy trying to return to its home base. Box turtles explore their environment using all their senses, but they have excellent color eyesight and rely on visual cues. Once this species reaches maturity, a box turtle may spend 50 years or more exploring every nook and cranny of its habitat. Depending on the food, water and shelter resources available, a territory may be the size of a football field (about 1.32 acres) or as much as 10 acres. Quality vs. quantity!
Wild Cape is a monthly column by Alice Mohrman dedicated to the rich and diverse ecosystem of Delaware’s Cape Region. It is our hope to bring readers closer to the natural world by exploring fascinating creatures, plants and habitats that thrive in one of the most ecologically significant areas of the Mid-Atlantic.





