The Math Teacher

What’s the difference between a seal and a sea lion? These “second cousins” of the sea look similar, but there are many ways to tell these creatures apart. From ear shape to the noises they make to communicate, seals and sea lions are amazing creatures with both shared features and many truly unique attributes. They both share an ocean habitat, but when readers take a closer look, it’s easy to discover how they each fight off predators, mate, and raise their young in different ways. Captivating full-color photographs help to bring these marvelous mammals to vivid life.

En esta adictiva saga de romance paranormal hay una continua guerra entre los vampiros y sus cazadores... Antiguo esclavo de sangre, el vampiro Zsadist todavía lleva las cicatrices de un pasado lleno de sufrimiento y humillación. Conocido por su innegable furia y su siniestro carácter, es un salvaje temido tanto por humanos como por vampiros. La rabia es su única compañía, y el terror su única pasión, hasta que rescata a la hermosa aristócrata de la diabólica sociedad de restrictotes. Bella se siente irremediablemente atraída por el increíble poder que Zsadist posee. Pero incluso...

For ages, the idea of machines that think and act on their own has gripped scientists, thinkers, and the general public. This book explores the history of artificial intelligence (A.I.), and how science fiction is quickly becoming science fact. It examines the technologies involved in A.I. and its inevitable effects on work, life, health, and many other aspects of human society. Rooted in history and science, this book provides an inside look at a topic that captivates engineers, scientists, and dreamers, but also raises important ethical issues and challenges how we see ourselves and our...

Discover how the butterflies colors are made up of, how they eat, and how they become the beautiful insect you see today