Every year in Namibia, about two thousand zebras suddenly disappear from their grazing area along the Chobe River. Months later, the herd returns. Where do they go? And why? Thanks to satellite-tracking collars, scientists were able to solve the mystery, but several questions remain. Award-winning science author Sandra Markle reveals the process scientists used to study the zebras, and she also delves into the science of migration, exploring how animals know where to go, how to get there, and when to leave.
In the history of life on this planet, 99.9 percent of all species have gone extinct. But a few have survived almost unchanged. Author Rebecca E. Hirsch introduces readers to six living fossils, including the chambered nautilus, the horseshoe crab with its sticky blue blood, and venomous platypuses that sting, as well as a comprehensive explanation of evolution and extinction for readers who may not be familiar with the terms yet. Readers will also discover a a spectacular timeline of the history of animal life on Earth. Dive into the stories of these incredible animals and find out how they help scientists piece together evolutionary history.
Burmese pythons are native to Southeast Asia, so when one showed up dead along the side of a Florida highway in 1979, scientists wondered where it came from. No one knew the snakes had launched a full-scale invasion. Pet pythons that escaped or were released by their owners started breeding in the wild, and these enormous predators began eating every animal in their path. Today a group of scientists at the Conservancy of Southwest Florida is tracking Burmese pythons to find ways to stop their spread. Page Plus links lead to video clips and photos of the scientists working in the field. Delve into the science of pythons and their role as invasive predators.
An innovative look at animal eyes from the creators of Bone by Bone, Tooth by Tooth, and Fossil by Fossil. What kind of animal would you be if you had eight eyes? Or if your pupils were the shape of the letter W? Keep an eye out for weird and surprising facts in this playful picture book, which brings together comparative anatomy with a guessing game format. See how your animal eyes are like—and unlike—those of starfish, spiders, goats, cuttlefish, owls, and slugs.
From the tiniest insect to the largest mammal, animals are amazingly clever. They have to be, if they're going to live out there in the wild. This beautifully illustrated series takes young readers on a fascinating discovery to observe the creatures who have found brilliant and unexpected ways to survive.
From the tiniest insect to the largest mammal, animals are amazingly clever. They have to be, if they're going to live out there in the wild. This beautifully illustrated series takes young readers on a fascinating discovery to observe the creatures who have found brilliant and unexpected ways to survive.
From the tiniest insect to the largest mammal, animals are amazingly clever. They have to be, if they're going to live out there in the wild. This beautifully illustrated series takes young readers on a fascinating discovery to observe the creatures who have found brilliant and unexpected ways to survive.
There are over 1,500 animals that eat their own kind. They come in all sizes and shapes. From the praying mantis to the polar bear. Cannibal animals eat to survive, possibly because of global warming. To keep their population in check. To get a healthy snack. To show another animal who's boss. And to ensure the perfect mate.
Diagrams, graphs, and fun text help readers explore the habitats, diets, and daily lives of boa constrictors.
Diagrams, graphs, and fun text help readers explore the habitats, diets, and daily lives of rattlesnakes.
Diagrams, graphs, and fun text help readers explore the habitats, diets, and daily lives of copperheads.
Diagrams, graphs, and fun text help readers explore the habitats, diets, and daily lives of cobras.
Diagrams, graphs, and fun text help readers explore the habitats, diets, and daily lives of pythons.
Diagrams, graphs, and fun text help readers explore the habitats, diets, and daily lives of copperheads.
Diagrams, graphs, and fun text help readers explore the habitats, diets, and daily lives of cobras.
Diagrams, graphs, and fun text help readers explore the habitats, diets, and daily lives of boa constrictors.
Diagrams, graphs, and fun text help readers explore the habitats, diets, and daily lives of anacondas.
Diagrams, graphs, and fun text help readers explore the habitats, diets, and daily lives of rattlesnakes.
Diagrams, graphs, and fun text help readers explore the habitats, diets, and daily lives of pythons.
Diagrams, graphs, and fun text help readers explore the habitats, diets, and daily lives of anacondas.
It seems they're everywhere. But scientists believe bees are at risk of survival. What has put bees at risk and should we care? Imagine a world without these important pollinators and you'll see a world with fewer and fewer critical food sources.
Wolves are apex predators in their habitat, but that does not mean they don’t fear the awesome strength of a bull moose! This action-packed title looks at both animals to compare battle advantages and methods of attack. Features include size comparisons and stat-packed profiles, while a fight narrative wraps up the book. Who will be the victor today?
Tigers and bears, oh my! These powerful predators each have terrifying traits that firmly place them at the top of the food chain. But what would happen in a matchup between the two of them? Reluctant readers can weigh each animal’s advantages and compare their attack moves with this high-interest title. Profiles offer stats including height and weight, while infographics highlight special abilities. A final narrative follows a fight between the two animals. Who will be ruler of the north?
Orangutans seem harmless, but these apes are powerfully strong. How would they fare against a fierce Komodo dragon? This high-interest title lets reluctant readers determine for themselves, introducing a unique matchup that weighs the physical advantages and attack moves of both animals. Profiles and charts offer additional avenues for comparison, with stats including height and weight. A final narrative pits the two animals against one another. Who will come out on top?
Explore some of the most high-risk, adrenaline pumping jobs that exist today.