La Bera Tar Pits are well knownFor ice-age monsters that called them home:The mammoths, ground sloths, short-faced bearsAnd saber-toothed cats found there.It’s from the smallest creatures thatWe learn about the habitat.Bacterias once unnamed,From insects and from pollen grains.Flies and termites, water fleas;We draw a picture based on theseOf a forest moist and dimThat formed the home they all lived in.Two rare pupa bees were found,Trapped forever in the ground,Did not emerge or fly or mate,But others of their kind escaped.And while the lions now are goneLeafcutter bees continue on.
learn more:
http://www.livescience.com/44724-leafcutter-bee-fossils-la-brea.html
http://en.wikipedia.org/wiki/La_Brea_Tar_Pits#Flora_and_fauna
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