`` Most of the tusks seem to have been collected from natural deaths of about 150 elephants over the last 20 years with the latest likely to be 6 months old , '' it said in a news release . five rhinoceros of Nairobi , Two rhino horns seized Saturday at Nairobi 's airport . The cargo had been disguised as avocados . five suspects arrested , officials say .
five rhinoceros of Nairobi , Two rhino horns seized Saturday at Nairobi 's airport . The cargo had been disguised as avocados . five suspects arrested , officials say .