stop activities such as the illegal live trade, then we're going to lose the asian elephant in e wild fover. what we're asking for is only a registration of captive bull calves so that they're actually registered with two weeks of birth. and tomake thieven stronger, we're also calling for a dna database >> now, with all this proof that we have, is really the moment to form an international community to, you know, push thailand to really enforce the law and finally really protect the wild elephants. >> until then, the plight of burma's wild elephants continues to hang in the balance. woman: a place in costa rica where a remarkably high number of people live to be over the age of 100. what's the secret to their longevity? i'm elaine reyes in washington, dc and this is "americas now." firsup, costa rica's largest peninsula also hasne of the largest populations of centenarians on the planet, with more residents who are over 80 than anywherelse on earth. man: they have sort of a positive outlook on life and they value a lot their social, their relationship with their families and with the commun

stop activities such as the illegal live trade, then we're going to lose the asian elephant in e wild fover. what we're asking for is only a registration of captive bull calves so that they're actually registered with two weeks of birth. and tomake thieven stronger, we're also calling for a dna database >> now, with all this proof that we have, is really the moment to form an international community to, you know, push thailand to really enforce the law and finally really protect the wild elephants. >> until then, the plight of burma's wild elephants continues to hang in the balance. [animal screeching] bill: good morning, bioneers. audience: morning. bill: morning. that's a phrase my wife likes to use when she's here. and unfortunately, she's not here today 'cause she has a bad cold, so i am pinch hitting, and i hope you'll, um, give me some leeway for improvising a bit as we go along. um, i am here to introduce dr. mark plotkin, who is a healer and a man whose life journey, i think,