homero g gÓmez was an enviroronmental activist.on january 13 and was later found dead. >> he was our pillar of strength, he always encouraged and supported us. my brother was the greatest. i don't think you can ever get over such a loss. he'll always be in my heart, and i will always look up to him. ♪ >> homero gÓmez was devoted to the cause of monarch butterflies. many members of one subspecies migrate 5,000 kilometers from eastern north america to this corner of the mexican state of michoacÁn, where they spend the winter. they always manage to find the same area of lush forest across generations! ♪ inin 2017, we came to visit homero gÓmez. he had made it his life's mission to protect the monarchs. it's amazazing to host this natural l wonder. we're really proud that the world's largest colony comes here. it's unique. when we walk through the forest, it's an indescribable feeling. we protect them day and night. the butterflies have chosen an enchanted place. >> why do the butterflies need protectingng? because logging, much of it

. ♪ >> t there are actctivists e homero g gomÉz all l around the world.cale in africa too, manpepeople a continent's safari parks. it's a balancing act: what do the animals need to thrive? how many tourists can they cope with? right now south africa has a strict coronavirus lockdown in place. ♪ safari tours are off the cards, but we headed t to the eaeastern part of the country, home to the famous kruger national park. next to it is the malamala game reserve, which is doing all it can to survive the current isisis. >> they'r're on patrol around ththe clock. since e the lockdown, , the fd rangers fromom the malamalaa wildlife reserve have even enent the ght t out the sh, to guard the animals. e e reservoffefers se of t the most l lurious safaris in southern aicica, drang ousands ofof tourists everery year.. since ththe lockdown, , the ans have beeeen largely alalone, d criminal poaching gangs knowt.t. ey arere keeto expxplo the situatioion. more r recently, aninimals that sell well for their meat have. malamala lies in one of ututh africa p poore regioio,