Sandra Markle

In the cloud forests of the Amazon Basin, scientists are installing extraordinary numbers of camera traps in the hopes of learning more about an elusive species - woolly monkeys. No one knows for sure how many woolly monkeys are left in the wild....

Top-selling science author Sandra Markle presents the story of whale sharks - the largest fish on the planet. Facing threats from commercial fishing as well as climate change, they were categorized as endangered in 2016. Find out how scientists are working to study and protect these gentle giants of the ocean....

In 2007 only 30 Amur leopards remained in the wild. Scientists knew they needed to do more to help these big cats. However, details of the leopards' wild lives in their high-altitude forest home were still a mystery....

Southern white rhinos are in trouble. For years, a rumor has been spreading that their horns can be used to cure cancer, and poachers have been targeting these gentle creatures....

African penguins waddle around nesting colonies in lower numbers than ever before. Despite South African government efforts to protect the penguin colonies and their ocean fish supply, young penguins still struggle to survive....

Little brown bats do us a big favor. They eat huge numbers of insects! That helps limit the spread of diseases and the damage that insects do to farm crops. But in recent years, large populations of little brown bats have been dying off each winter....

Honeybees are a crucial part of our food chain. As they gather nectar from flowers to make honey, bees also play an important role in pollination. But large numbers are disappearing every year. In this real-life mystery, scientists and beekeepers are working to answer this question....

Panamanian golden frogs aren't just cute, little, and yellow. They're also the national symbol of Panama. But they started to disappear about 15 years ago....

Acclaimed science author Sandra Markle offers a fascinating look at Gobi bears - the rarest bears on the planet. These adorable animals face threats ranging from illegal gold miners to climate change. Find out more about these bears, which are considered a national treasure in Mongolia....