21.   The subject was a woolly mammoth, and where its heart would be, the prehistoric artist painted a red, heart-shaped spot.

22.   The woolly mammoth was about the size of a modern African elephant, though shaped a bit differently.

23.   These behemoths, unlike the woolly mammoths of the north, were less hairy and more like African elephants.

24.   Thus the Irish elk joins some other large mammals, including the woolly mammoth, as an unexpected survivor into the Holocene, the modern post-ice age epoch.

25.   We might eventually have woolly mammoths for house pets.

26.   Woolly mammoths, for instance, were enormous animals that also disappeared.

27.   Woolly mammoths, Spanish explorers, English settlers, indigo farmers, cotton planters and modern dwellers all have left their mark.

28.   A woolly mammoth preserved in ice has been excavated in Siberia and airlifted by helicopter to a cave where it will be kept frozen and studied by scientists.