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.
Raccoons are nocturnal because some of there prey are also.  In the night they also have less predators and can find food easier in the night without lights and people seeing â¦ them.They have extreme night vision.8 people found this useful.es, raccoons are nocturnal. They sleep or remain in their home area during the day and come out at night in search for food. 3 people found this useful. Edit.