What should you do if you find a dead bird that's been banded by scientists?
Isn't it amazing that dog breeds like the Chihuahua and the Great Dane can vary so much in size, yet be the same species?
Tortoises can live beyond 100 years, and whales and elephants also have long lives. What's the shortest-lived tetrapod (four-limbed creature with a backbone)?
Why do we age? Science didn't really start investigating that question until the 1960's.
What insect has the longest life span of them all? Find out on this Moment of Science.