U.S. News has named a member of the Ivy League as the best national university in each of the past fifteen years ending with the 2015 rankings: Princeton eight times, Harvard twice and the two schools tied for first five times.
Frogs tend to be nocturnal because night is the best time for them to catch prey such as insects and worms. Nocturnal terrestrial frogs are often brown or gray with spotted backs, while nocturnal tree frogs are usually green. These camouflage colors keep them hidden from predators as they sleep during the day.
Facts about this animal. It is a medium-sized tree frog, ranging from 5 cm to 7.5 cm. it is arboreal and completely nocturnal. The most apparent physical feature is their red eyes.The dorsal side and legs are usually bright lime green, and the sides of their body are striped in blue and yellow.he musical mating ritual of the red-eyed tree frog is begun by the loud croaking of one male, who is quickly joined by other ones in the area, all sharing the common goal of attracting females. This loud croaking continues as A. callidryas males jump from one leaf to another in a crazed attempt to establish territory.