e wwf tete wants to find out how a affects the a animals. marcelo: we know very ttttle ababout e effefectof mercucu on anim organms. there arfindin about the effects on peoe e -- dage to gans and t cenentr nervous stem -- t we know xt to nothg about s effes on wildnimals. we're concting a t ofof tests in paralle using ultrasnd and bod tests a ll as tiue sampl. we wt t toind out t w the toxifunctions. reporterthe e incrsing number of dams d hyhydrlectric plants aralso a threat to the dodolphins. marcelo: separatation caused y the presce o of power statatio is the main problelem. they posa a barrier to g genetc exchange. a male and a female can't breed if they're kept apart by a dam. repoporter: thisis time the tes determined to attach a gps transmitter to a dolphin. it can take hours to net one. and then they still often mange to escape. research into river dolphins in colombia and bolivia is also underway, with other countries to follow. the wwf hopes to build a database of dolphin health throughout all of amazonia. most of the animals here

the wwf hopes to build a database of dolphin health throughout all of amazonia. most of the animals here are relatively small and lean -- none weighs over 70 kilos. breathing and heart rate are constantly monitored. this examination runs more smoothly. inside half an hour the tests are complete, and a gps transmitter is attached to the dolphin's dorsal fin, which consists almost entirely of cartilage. miriam: the animals do feel what we're doing to them. but for the invasive interventions, the biopsies and attaching the transmitter, they're given a local anesthetic. reporter: the dolphin will be released back into the open water as quickly as possible. the wwf hopes the project will help to get the pink river dolphin onto its list of threatened species, to better protect them and their biosphere. back in the water, the erstwhile captive's buddies are there to welcome it home. host: and that's all for today. but we love hearing from you, so do write to us at global3000@dw.com, or on facebook. bye for now. see you soon. ♪ [captioning performed by the national capti

i asked khalid pasha, a protected area specialist at wwf, why standards are so below par.ucted... in southeast asia, the governments have to invest in a long and sustained manner. that is not happening. to get the tiger‘s conservation and protection, this is necessary. investments, protections, resources. what will it take to turn things around and for governments here in southwest asia to realise, yes, we have to do it yesterday. well, i think they can pick it up from their neighbours in south asia. india, nepal, bhutan and even russia have invested heavily and we have seen the dramatic results of positive side and we have seen the rise in the tiger numbers. that's the net result of investment. and here in thailand, they've also done the same thing as india, russia and nepal and they've also invested in the protection of the tigers. yes, they have done that, and i think there is also an example for other southeast asian countries to pick it up from there. they should be doing the similar way and taking tiger conservation into the lead. what are we doing right and what can

he and the wwf teaching them that preserving the monarchs could be more profitable and rewarding. ♪ tourisming. they're growing trees and mushrooms to sell. the problem for the monarchs is now largely in the u.s. herbicides killing milkweed plants along the migration route. monarchs will only lay their eggs on milk weed. if you love on those routes, you can make a difference. >> just by planting milkweed? >> exactly. not only the government, the people. >> reporter: are you going to plant milkweed? >> we have lots of milkweed. >> reporter: eduardo is blowing on a monarch to warm her up. >> yeah, well done. you saved one. >> one. the plan is to save millions of them. >> amazing. sometimes there's so many you can't see the leaves on the trees. >> incredible. if you're age 50 to 85, and looking to buy life insurance on a fixed budget, remember the three p's. what are the three p's? the three p's of life insurance on a fixed budget are price, price, and price. a price you can afford, a price that can't increase, and a price that fits your budget. i'm 54. alex, what's my price? you can get cover