Ripley's Believe It or Not by Ripley’s Believe It or Not! for March 08, 2010
Transcript:
A person's skeleton continues to grow until around age 25, when the collarbone finally finishes developing! Relationship: It's complicated! Some species of Acacia trees live in harmony with ant colonies, providing food and shelter to the ants in exchange for protection from parasites and herbivores! According to U.N. estimates, city dwellers amounted to half of the world's population in 2009 for the first time ever!