Engaging text describes the fastest animals on Earth.
Engaging text describes animals who are crafty problem solvers.
This brief overview of mammals describes their basic characteristics and life cycles. Reading Essentials in Science.
How the Brown Tree Snake made themselves at home, disrupted the island's ecosystem, and created problems for its people and native animals.
Bullfrogs are big eaters, consuming almost anything that fits in their mouths. Meals include birds, turtles, snakes, and even other frogs. At one time, bullfrogs lived only in North America and east of the Rocky Mountains. Today, the large frogs have invaded many parts of the world, causing problems for native wildlife. Look inside to discover how bullfrogs became an invasive species and what is being done to help stop their spread.
Fire ants are tiny, but they pack a powerful sting. Some kinds of fire ants were accidentally brought to North America from South America in cargo ships. Look inside to learn how these invasive fire ants have spread to many places around the world and why they are a threat to wildlife, human beings, and economies.
The Walking Catfish have upset the balance of the ecosystems and hurt local economies.