that's why silvana says it's crucial to not only protect this area for the animals that live here, but for humans as well. >> it's the caeffect. people say that nature is like a house of cards. if we start losing species, it's house of cards. card from the eventually, there will be a point when the planet will because everybody has a role. everybody's here for a purpose. the purpose, meaning the balance of the planet. >> the single greatest repository of the variety of life on earth is in the amazon. >> naz: thomas lovejoy is an ecologist at george mas h university ws been coming to and studying the amazon since the 1960s. >> the amazon actually makes this planet work. it affects thee.lim it affects the hydrological cycle.l and ese species added up become biological diversity. all have evolutionary histories that gback four billion years. >> nawaz: but the amazon's incredibly rich biodiversity is different fronts. from several nearly 20% of it has been deforested since the 1970s, cleared out to mke way for infrtructure projec, mining and agriculture. that destruction is having a devast

. >> nawaz: to savehat they could, george and his wife, silvana campello, helped the brazilian state of tocantins create cantao state park in 1998, a nearly 350 square mile streh of pristine forest and grasslands, nestled between the araguaia and coconut rivers. >> we fell in love for this place because, as biologists, we could understa how important this place is. >> nawaz: the couple houses siting researchers, who run long-term studies and use motion-activated cameras, to better understand what animals actually live here and what they need to survive. some, like the giant otters, have even been saved from thek brin extinction. >> we have placed a camera trap, so we are going to go there and check the camera trap and see if ere has been any activity. >> nawaz: and traing them, silvana says, hased to new discoveries about the way they live and interactith each other. among the otters?e >> among the o. >> nawaz: like what? >> like, for example, den sharing. a certain group of otters will occupy asen for couple of we and then they will leave, and another group would come and use the sa

es lo que he aprendido con anabel y silvana los detalles de una fruta ya hace que sepa agria y quitarlerruinan la diversión? prueba con zyrtec... que actúa poderosamente desde la primera hora, refuerza su eficacia si lo tomas al día siguiente. zyrtec y deja de sufrir alergs. es por eso que hemos estado haciendo la mejor mayonesa desde hace 100 años el verdadero placer está en el sabor ♪we belong to thesay ♪light, we belong ♪to the thunder. ♪we belong ♪we belong, ♪we belong together. cuando se trata de aromas, el lema de helena es "cuanto mas mejor" y cuando probó el detergente gain scent blast, lo amó. su hijo lo ama y su esposo lo ama también. ...y la repartidora? mmm. raro. gain scent blast. nuestro aroma mas intenso en suavizante de telas y perlas aromáticas. [mÚsica] >> hoy tenemos al equipo mÁs profesional de periodistas. [risas] >> estoy feliz de estar de regreso con ustedes. >> vamos a hablar de algo que estÁ en boca de todos. quiÉn no quiere ser cantante? estamos hablando de la reina, todas tienen en comÚn ser la reina de la canciÓn. este programa tiene hoy en comÚn el cuchicheo