The Grants' bands for ringing finches
In 1973, British biologists Peter and Rosemary Grant began their scientific activities with Galapagos finches on Daphne Major islet. Their research would lead them to show, among other things, that natural selection can be seen within a single lifetime. One of the elements used in their field work was a series of colored plastic rings used to identify birds. A unique sample of those rings is preserved in the collections of the CDF Archive.