Red

The red-spotted newts are on the move at the Flight 93 National Memorial in Shanksville.

The National Park Service shared photos of the bright orange creatures crawling around the memorial, telling visitors to be on the lookout.

Right now, the red-spotted newts are bright orange juveniles called red efts. They're migrating out of wetlands to spend the colder months on land. According to the Pennsylvania Fish and Boat Commission, the orange color is a warning sign. During the red eft stage, the newts develop a thick skin with poisonous glands to deter predators.

"Please keep an eye out for these tiny travelers on the roads and watch your step!" the Flight 93 National Memorial posted on Facebook, sharing a photo that read "amphibian crossing."

Red-spotted newt (Photo: National Park S