The crushing of ivory tusks is meant to show that the U.S. won't tolerate wildlife crimes.
Poaching elephants for their ivory, prized in Asia for trinkets, is rampant in Africa.
A total of 1,215 rhinos were killed in 2014, compared with 1,004 in 2013.
Zimbabwe says it has 80,000 elephants, but room for only 42,000.
In Zimbabwe, the transformation from poacher to elephant savior isn't just a personal choice, it is a financial one.
Thirteen countries that are home to the world's dwindling population of wild tigers have agreed to establish an intelligence-sharing network.
Poachers killed 1,215 of the iconic savannah animals last year.
The agency looks to the public for help locating nine fugitives suspected of committing serious environmental crimes.
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