The researchers have found that almost all the illegal ivories are from recent poaching. Meanwhile, humans are not only animals that are farsighted!
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Tagged under: SciShow,science,Hank,Green,education,learn,Olivia,Gordon,Saving Elephants Carbon Dating,ivory,elephants,tusks,poaching,carbon dating,dentin,carbon-14,East Africa,presbyopia,farsightedness,bonobo,grooming
Find more lesson plans like this:Saving Electricity Lesson for Kids
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