Résultats de "Sandra Markle" dans Toutes les catégories

Great white sharks can weigh thousands of pounds, and their enormous tail fins send them zooming through the water in pursuit of prey. Find out how these top predators hunt and raise their young.

Owls are one of the world's top predators. These stealthy hunters can fly nearly silently, see long distances, and easily hear prey. Discover the hunting behaviors of owls and see how they train their owlets.

Eagles' feather-covered wings, sharp talons, and keen vision make them the top predators in their habitats. These excellent hunters can easily spot prey and glide through the air. Learn about the lives of eagles.

Lions are deadly predators. Their size, keen eyesight, and razor-sharp teeth and claws help them take down prey. Find out how lions hunt, interact with other lions in their pride, and raise their young.

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, and learn what scientists are doing to help this critically endangered species.

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!

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. 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.

Honeybees are a crucial part of our food chain. As they gather nectar from flowers to make sweet honey, these bees also play an important role in pollination, helping some plants produce fruit. But large numbers of honeybees are disappearing every year...and no one knows why. Is a fungus killing them? Could a poor diet be the cause? What about changes to bees' natural habitat? In this real-life science mystery, scientists and beekeepers are working to answer these questions...and save the world's honeybees before it's too late.

At one time, red wolves roamed the US from southern New York to as far south as Florida and as far west as Texas. But as European settlers moved in, these wolves began losing their home range and were hunted as a threat. Red wolves became so rare by 1973 that they were given protection under the US Endangered Species Act. Then scientists came up with a daring plan: round up all remaining red wolves, launch a captive breeding program, and once the captive population was large enough, release red wolves to roam free in protected areas.

Using teamwork and keen eyesight, vultures soar thousands of feet above the ground in search of carrion to eat. Learn about the habits and life cycle of this iconic avian scavenger.

Wolverines are excellent scavengers with a keen sense of smell and the skills to find meals. Learn about the lives of wolverines, including how they search for food, find a mate, and raise their young.

Honey bees are among the world’s most important insects. They help pollinate many of the crops we depend on for food. Without them, the global food supply would be in great danger. In 1998, beekeepers in Europe made a shocking discovery—almost all of the honey bees had disappeared from their hives. Several years later, beekeepers in the United States found that many of their honey bees had vanished too. Scientists called this disappearance colony collapse disorder (CCD), and at first, no one knew why it was happening.