Harry loves junk food and hates exercise--and it shows. But his clever pet hamster knows where Harry can go to get fit--Hamster Camp, where everyone eats and plays like a hamster. Before Harry knows it, he's got some healthy new habits. Full color.

How could a band of condemned and terrified hamsters ever hope to conquer a castle full of vicious wolves, led by the malevolent wolf king, Serigala? And how could a peaceful and melodic chorus of canaries escape the relentless pursuit of bloodthirsty bobcats, led by Sanguinaire, the ghost cat? The growing evil becomes overwhelming when the wolf king and the ghost cat join forces to destroy everything that is good and pure. Who will rise to become a hero, a deliverer? Will it be Captain Nibbles, the hamster of nobility who lives with deep regret and only seeks a second chance? Or will it be Wendell Cheeks, the scrawny tossed-away hamster who was the runt of his litter? Maybe a different hero will emerge, like Tobias Von Schnee, the hamster from the Bavarian hamster clan who was a member of the Royal Bavarian Archery Brigade. A champion and defender might even be found in Paffuto, the sad, lonely, and broken five-hundred-pound canary who just wanted to chirp with the other canaries. When many enemies surround us, many heroes are required to rise. Who will submit to the dark howl of the wolf, and who will hearken to the sweet call of the castle?

Offers information on how to choose a hamster, provide good nutrition, housing, and how to have fun with a hamster.

The sixth book in the beloved and award-winning school hamster series! When Humphrey hears that school is ending, he can't believe his ears. What's a classroom hamster to do if there's no more school? It turns out that Mrs. Brisbane has planned something thrilling for Humphrey and Og the frog: they're going to Camp Happy Hollow with Ms. Mac and lots of the kids from Room 26! Camp is full of FUN-FUN-FUN new experiences, but it's also a little scary. There are fur-raising wild sounds and smells, and there's something called the Howler to watch out for. Humphrey is always curious about new adventures, but could camp be too wild even for him? Look for all twelve of Humphrey's adventures!

Funny, light-hearted monster stories that are perfect for young readers, brought to us by the esteemed Dr. Roach. Billy's new pet hamster is a huge disappointment. Despite his name, Hercules is perhaps the world's laziest rodent. He does nothing besides sleep, eat, and sleep some more. So when Billy sees an advertisement on television for a power snack, he decides that's just the thing to put some hurry into Hercules. But when the formula begins working too well, Billy realizes he may have one massive, hungry problem on his hands.

Studies of oogenesis occupy an important place in current in vestigations in developmental biology. Today no one has any doubt whatsoever that oogenesis is not just the prelude to development, but is development itself, and a very essential part of it. These words of an eminent Soviet scientist, B. L. As taurov , taken by T. B. Aizenshtadt as an epigraph to her chapter in this book, make a good epigraph for the entire book. It is now clear that during oogenesis not only vast reserves of ribosomes and mitochondria, of yolk, carbohydrates, and lipids, and of enzymes for protein and nucleic acid synthesis and for carbohydrate and fat metabolism (which ensures the energy supply and metabolism of the oocyte and the developing embryo) are formed, but also long-lived mRNA and proteins are synthesized, which determine both the completion of oocyte maturation and the initial stages of embryonic development. In the last 15-20 years, the use of molecular biology methods, electron microscopy, autoradiography, and microsurgical methods of experimental embryology in studying the pre-embryonic development of animals has greatly increased our knowledge of oogenesis. This has led to the need to systematize the data obtained, to reinter pret old ideas, and to review the results obtained by new research trends which have emerged in the last few years and which are of general biological interest. Such a task was undertaken in the book Sovremennye Problemy Oogeneza (Current Problems of Oogenesis), published in 1977 (in Russian).