This 22 July 2019 video from the Natural History Museum in London, England says about itself:
These finches were collected from the Galápagos Islands in 1835 by Charles Darwin and his colleagues during the second voyage of HMS Beagle (1831-1836) and are now part of the Natural History Museum‘s collections.
For more on [Galápagos] finches, visit our website.
Researchers found that Charles Darwin’s famous finches defy what has long been considered a key to evolutionary success: genetic diversity. The study of the finches of the Galapagos Islands could change the way conservation biologists think about species with naturally fragmented populations to understand their potential for extinction: here.