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.
The Red-eyed Tree Frog (Agalychnis callidryas). The abundance of moisture in a rainforest allows many different kinds of amphibians, such as this Red-eyed Tree Frog, to live there. Amphibians lose moisture through their skin and need a moist environment.The Red-eyed Tree Frog lives in the canopy of the rainforest most of the time, but comes down to ponds when it needs to breed. These frogs are quite common in the rainforests of Panama, Costa Rica, and Nicaragua.The pair of Red-eyed Tree Frogs pictured here are looking for a place to mate.he Red-eyed Tree Frog (Agalychnis callidryas). The abundance of moisture in a rainforest allows many different kinds of amphibians, such as this Red-eyed Tree Frog, to live there. Amphibians lose moisture through their skin and need a moist environment.