Siesta the donkey greets Sudo the dog in Melbourne, Australia (© Sarah Matray/REX Shutterstock)

【August 2 2015】Who better to embody the spirit of International Friendship Day than these two buddies of different species? Traditionally, we celebrate Friendship Day on the first Sunday in August. But the exact date varies in some regions. In India and parts of South America, Friendship Day is more widely celebrated than here in the United States. And how does one celebrate this day? It can be as simple as letting your pals know that you appreciate their friendship, no matter where they happen to be in the biological taxonomy.Explore breathtaking Gallery from the HuluTrip homepage over the past 5 years..