Use the timeline below to select up to 20 seconds to watch or share.
2.44sNARRATOR: The isolated Galapagos Islands.
3.2sA veritable pageant of evolutionary science.
3.3sHome to dozens of species found nowhere else,
3.1ssuch as Darwin's finches and the marine iguana.
1.93sAlso the blue-footed booby!
4.12sThat's fairly interesting! Note the blue coloration of the...
2.3sOf all the creatures in the Galapagos,
4.82snone is rarer or more tragic than the Pinta Island tortoise.
3.54sOnly a single living specimen is known to exist,
4.5sSad news, everyone. I'm lonesome.
2.77sHey, would it cheer you up if we gave you a symbiotic parasite cleaning?
1.85sWould it? Would it? Would it?