Bok
07-29-2013, 12:26 PM
Insect damage to ancient bones reveals length of ‘summer’ during the last ice age
More... (http://www.sciencenews.org/view/generic/id/351949/title/FOR_KIDS_Tar_pit_bones_yield_climate_clues)
More... (http://www.sciencenews.org/view/generic/id/351949/title/FOR_KIDS_Tar_pit_bones_yield_climate_clues)