Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Contact area measurements. The area of pads, tubercles and the total area of fore and hind limbs (open and filled boxes, respectively; mean of left and right limbs) were recorded on a flat and two curved surfaces (cylinders with outer diameter of 44 mm and 120 mm). Images: frogs attached to the different surfaces. Note the additional subarticular tubercles and other large areas of the feet coming into contact when adhering to curved surfaces.
