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Plastic bags are cheap and easy to use. But what happens when a bag breaks or is no longer needed? In Njau, Gambia, people simply dropped the bags and went on their way. One plastic bag became two. Then 10. Then a hundred. The bags accumulated in ugly heaps alongside roads. Water pooled in them, bringing mosquitoes and disease. Some bags were burned, leaving behind a terrible smell. Some were buried, but they strangled gardens. They killed livestock that tried to eat them. Something had to change.

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. But they play a key role in their ecosystem, and without them the rain forest is in trouble. Join scientists on their quest to solve the mysteries surrounding the lives of woolly monkeys before it's too late. Scan QR codes inside the book to see and hear the monkeys!

In the dark, Kristofer Helgen and a group of scientists peered up into the treetops of the Ecuadorian cloud forest. Staring back at them was a furry, four-legged creature. Could it be the mysterious, wild olinguito? Helgen had been studying the olingo, a relative of raccoons, for years. As he examined their pelts and skulls in museums, he noticed differences in a few. Through scientific investigating, he realized the different examples weren't olingos at all - he had discovered a completely new species.

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.

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. Sandra Markle takes listeners behind the scenes to see how civilians, volunteer organizations, and African governments are working together to protect rhinos.

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. Fuzzy chicks waiting for food in open nests may overheat in the sun or become prey. Others simply may not get enough food to survive on their own once their parents leave.

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. With the help of new technology and the cooperation of scientists and governments around the world, people have learned more than ever before about these rare cats. An innovative plan is under way to give Amur leopards a more secure future. Can these cats rebound from the brink before it's too late?

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. Is a virus killing them? Could climate change or pesticides be the cause? Or is it something else? Follow a team of dedicated scientists working to save the little brown bats in this real-life science mystery.

Late in 2013, snowy owls started showing up in places no one expected to find them - including Florida. What had caused so many of these majestic birds to leave their Arctic home and fly to southern Canada and the United States? Scientists quickly began working to find out. Author Sandra Markle brings together firsthand reports from the scientists involved along with stunning photographs of the owls to explain this rare event, known as an irruption.

In Elkhorn Slough, an inlet on the California coast, seagrass grows healthy and strong in the shallow water. This healthy seagrass baffled marine biologist Brent Hughes. The scientist expected this estuary to be overrun with algae, causing the seagrass to die. Why was the seagrass thriving? As Brent investigated, signs pointed to an unexpected player helping to keep the seagrass healthy: sea otters! What do these top predators have to do with an aquatic grass at the opposite end of the food chain?

Golden lion tamarins are found only in Brazilian forests. These small, remarkable monkeys once had plenty of space to roam and claim family territories. But years of deforestation caused their numbers to shrink. They were in serious danger of becoming extinct. To help, scientists studied the animals in zoo settings. But they faced several mysteries. Why weren't golden lion tamarins reproducing in zoos? If scientists reintroduced zoo-raised tamarins to the wild, would those monkeys survive?

The arctic tundra is frozen for most of the year. Only a few types of animals can survive there. But what does the tundra look like in summer? And how do plants grow in this dry biome? Listen to this book to find out!

The rain forest biome is filled with many kinds of plants and animals. More rain falls here than anywhere else on Earth. How do animals protect themselves from danger in the rain forest? And how do plants get enough light to grow under the thick canopy? Listen to find out!

The ocean is the largest biome on Earth. Animals live all over the ocean - from the sunlit surface layer down to the deep, dark ocean floor. But how do plants grow deep underwater? And what can people do to help keep this biome safe? Listen to this book to find out!

There are lakes in each biome on the planet. They are filled with many different kinds of plants and animals. But how do these lakes form? And how can people keep lakes clean and safe? Listen to this book to find out!

The grassland is covered with tall grasses and plants. Many insects and animals live in this biome. But how do they survive in the grassland? And how does fire help new plants grow? Listen to this book to find out!

Winter lasts a long time in the evergreen forest biome. The trees here stay green all year. But how do tree needles help a tree survive the winter? And how do animals live in the snow and cold? Listen to this audiobook to find out!

The deciduous forest biome is filled with leafy trees. This biome changes with each season. What kinds of animals live and hunt in the forest? And how do people make good use of the trees? Listen to this book to find out!

In this awesome and inspiring guide, McFly bassist and environmental activist Dougie Poynter shows you how to get involved in the mission to cut out single-use plastic. Plastic is everywhere and it sucks. It fills up our oceans, endangers our wildlife and never goes away. So it's time to take action. As a lifelong supporter of environmental causes, Dougie is always on the hunt for ways to reduce and replace plastic. This audiobook draws on his own experiences in the fight against plastic waste - the problems he's encountered and the solutions he's found.

In fairy tales, the wolf's cry makes people shudder. They've been hunted, captured. But the wolf carries a wild magic - a magic that once restored a barren land. When wolves disappeared from Yellowstone Park in the 1930s, the ecosystem started to collapse. Enormous herds of elk swarmed the plains, bears starved, rabbit families shrunk and birds flew away to new homes. Plants vanished, trees withered and rivers meandered. Until in 1995, wolves returned to the park and everything began to change for the better. This is the story of their homecoming.