‘It will not succeed’: House Dems block Marjorie Taylor Greene’s effort to oust speaker

But it's a significant challenge for customs and law enforcement agencies to distinguish between ivory from extinct mammoths and living elephants. This is a process that is both time-consuming and requires destroying the ivory. Now our new study, published in PLOS ONE, presents a major breakthrough - using a well known laser technique to tell mammoth and elephant ivory apart. Our results couldn't come soon enough. The number of African elephants has dramatically declined from approximately 12 million a century ago to about 400,000 today. Annually, over 20,000 elephants are poached for ivory, primarily in Africa. This decline not only…