Use the timeline below to select up to 20 seconds to watch or share.
2sSo are you gonna fertilize my eggs now?
2.2sAlready taken care of.
3.62sWell, we swam away and then we came back.
2.9sIt's been an interesting life.
5.37sAnd the best part is, it had a happy ending.
4.25sNARRATOR: And so the endless circle of life comes to an end,
2.03smeaningless and grim.
2.45sWhy did they live, and why did they die?
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!