Nature Mysteries

Did you know there are over 400 different species of sharks? Did you know they have been on Earth much longer than humans, and even lived before the dinosaurs? Here you'll learn all about these fearsome kings of the ocean, including their eating habits and the basics of their anatomy. Sharks come in many sizes, from under a foot long to over 40 feet - and that's not even counting the long-extinct, 60-foot-long Megalodon shark. And while some have been known to bite people, they are usually quite content to hunt other sea creatures.

When Sally May and Loper head out of town for a wedding, Hank the Cowdog, Head of Ranch Security, knows it's up to him to keep things under control. After subjecting strawberry ice cream to rigorous product testing, test-driving a mysterious spaceship, and thwarting a sneak attack from a couch monster, Hank faces the fight of his life.

Honey Santana, impassioned, willful, possibly bipolar, self-proclaimed "queen of lost causes", has a scheme to help rid the world of irresponsibility, indifference, and dinnertime sales calls. She's taking rude, gullible Relentless, Inc., telemarketer Boyd Shreave and his less-than-enthusiastic mistress, Eugenie, into the wilderness of Florida's Ten Thousand Islands for a gentle lesson in civility. What she doesn't know is that she's being followed by her Honey-obsessed former employer.

Everyone loves Drover, Hank's trusty sidekick. But have you ever wondered what the little, white, stub-tailed dog's life was like before he came to the ranch? Well, it's all here, in Drover's own words. Scratching his story out in the dirt on the machine shed floor, Drover comes clean about his secret life--from his early days as runt of the litter, to his frustrating search for a job, to his ultimate position as Hank's right-paw man.

The Trinity is the central mystery of the Christian faith. What can we say about the divine nature, and what does it mean to say that God is Father, Son, Holy Spirit, three persons who are one in being? In this book, bestselling author Thomas Joseph White, OP, examines the development of early Christian reflection on the Trinity, arguing that essential contributions of Patristic theology are preserved and expanded in the thought of Thomas Aquinas.

Catalina "Cat" Duran and her friends thought they were on a field trip to see the seals at the aquarium. So why has the seal show been cancelled?

Hank's in double trouble! Hank conducts defensive maneuvers against an attacking silver monster bird. But the trouble really begins when Hank is stricken with a terrible case of "Eye-Croserosis". Can he find a cure? Will the mysterious Madame Moonshine be able to help him? Hank's job is at stake!

When my old friend Professor von Volt called to ask for help, I agreed immediately, even though it meant trekking halfway around the world to Mouse Everest! The trip was long and dangerous. I almost froze my tail off along the way. And then I was kidnapped by a yeti! Yes, it was truly an amazing adventure.

The Boxcar Children are going to a dog show. They meet all kinds of dogs, from a spotted Dalmatian to a big, hairy sheepdog. But then strange things start happening at the dog show, and no one knows why. Can the children solve the mystery and save the day?

There's been a brutal murder on the ranch, and it's up to Hank the Cowdog, Head of Ranch Security, to conduct the investigation. The only problem is no one's talking. After a dangerous fact-finding mission, Hank thinks he knows who the guilty party is.

W. H. Beck's highly anticipated debut promises to delight young listeners with an imaginative tale about a rat who refuses to be judged by his appearance. Malcolm the rat loves the attention he gets as a pet at McKenna School. That' s where he meets the Midnight Academy, a secret society of classroom pets who've pledged to keep the students safe. The trouble is, rats have a bad reputation, so when their iguana leader is kidnapped, the Academy suspects Malcolm.

Blue River Creek has a problem: there's a pet thief on the loose! Or at least, Sofia and Iggy are convinced that there is, once their pets go missing. But as a scientist, Ada knows it's important not to jump to conclusions and to follow the facts. How will they find out what really happened to the town's pets? By using the Scientific Method, of course! Through making a hypothesis, collecting data, and experimentation, the Questioneers must find the missing animals before even more pets disappear!

When Hank the Cowdog sticks his nose where it doesn't belong - into an old pipe behind the machine shed - he gets more than he bargained for. Before he can say "boy howdy", Hank gets a nip that sets his eyes a-watering and his snouta-throbbing.

Humphrey has always investigated things, like why Speak-Up-Sayeh was so quiet and Tall-Paul and Small-Paul didn't get along, but this is a true mystery - Mrs. Brisbane is missing! She just didn't show up in Room 26 one morning and no one told Humphrey why. The class has a substitute teacher, called Mr. E., but he's no Mrs. Brisbane.

When the Aldens first arrive in Elbow Bend, they meet Kate Frances, who tells them all sorts of ghost stories about the town! The scariest tale is about a ghost dog who howls at midnight and appears to warn people of danger! The Aldens think it is just a story until they hear dogs all over Elbow Bend howling at midnight. Does the ghost dog really exist or is someone playing a trick on them? The Boxcar Children are determined to find out.

When Naomi gets a tip about a strange snake sighting in the neighborhood, she knows it’s a job for her snake-saving club. Naomi, Nolan, and Emma go to investigate and get a huge surprise. The snake isn’t a native Texas species—it’s a ball python! Did someone dump an unwanted pet, or did this snake somehow get lost?

In Maximum Ride: Saving the World and Other Extreme Sports, the time has arrived for Max and her winged "Flock" to face their ultimate enemy and discover their original purpose: to defeat the takeover of "Re-evolution", a sinister experiment to re-engineer a select population into a scientifically superior master race...and to terminate the rest. Max, Fang, Iggy, Nudge, Gasman, and Angel have always worked together to defeat the forces working against them—but can they save the world when they are torn apart, living in hiding and captivity, halfway across the globe from one another?

Sawyer Matthews is a retired and presumed-dead assassin. Ripped from her life of shadows and secrets, she's decided to gamble it all and accept a new chapter in her life - one that may lead to a brighter future. With her first case over and budding relationships with some of her teammates, Sawyer finds herself feeling more secure. Sawyer's found a place on the team, and wants to keep it, no matter the struggles that come from it. It should have been a standard, mundane trip to New York, and the base of operations for the IMPO and the WMC.

Chipper is a very special dog. He's part of a multi-million dollar experiment at a secret organization known only as The Institute. The Institute has been experimenting with dogs, melding them with state-of-the-art computer technology. But there's a problem with Chipper. His natural dog instincts often overrule his computer side. No matter what he's doing, if he sees a squirrel or a mouse, he'll drop everything to chase it.

Nos últimos anos a ciência tem comprovado que as árvores e o homem têm muito mais em comum do que poderíamos imaginar. Assim como nós, elas se comunicam, mantêm relacionamentos, formam famílias, cuidam dos doentes e dos filhos, têm memória, defendem-se de agressores e competem ferozmente com outras espécies. Em A vida secreta das árvores, o engenheiro florestal alemão Peter Wohlleben alia seus 20 anos de experiência às últimas descobertas científicas para examinar o dia a dia desses seres fantásticos.