variation (biology)

This compelling text examines evolution, its definition, and the scientific evidence that evolution has taken place. Readers explore the concepts of natural selection, Darwin's Origin of Species, genetics and evolution, population genetics, patterns in evolution and species concepts, the story of life and geological time, and human evolution. Easy-to-follow narratives offer students additional biological information in sidebars, such as "Closeup" boxes that give details about main concepts and "Try This" boxes that provide safe experiments for readers to perform. The text serves as a must-have resource on modern thinking about evolution and the history of evolutionary theories.

"Seven years ago, the Affliction raged like a forest fire, killing billions. The only children born since are part of a new breed of human-animal hybrids. Gus is one of these children: a boy with a sweet soul, a sweeter tooth--and the features of a deer. But kids like Gus have a price on their heads. When vicious hunters descend on his isolated forest home, a mysterious and violent man called Jepperd rescues Gus. The hulking drifter promises to lead Gus to the Preserve, a fabled safe haven for hybrid children. As the two cross this dangerous new American frontier, will Jepperd corrupt the boy he's nicknamed 'Sweet Tooth,' or will Gus' heart change Jepperd?"--Provided by publisher.

"The place where it all began. After years of the deadly Affliction, those who remain--the surviving humans and the new generation of animal-hybrid children--are searching for answers. And one place in all the world seems to have them: Northern Alaska. It was in this faraway, frozen wilderness that the Affliction first took root, before eventually spreading its devastation throughout the globe"--Back cover.

Follows the adventures of mutant Doreen Green, aka the superhero Squirrel Girl, as she, her squirrel sidekick Tippy-Toe, and a squirrel army, with a little help from Iron Man, take on Kraven the Hunter, Galactus, and college life.

"The Death of Squirrel Girl! Squirrel Girl attends a funeral - her own! But how is that possible? Who is that in the coffin? Hmm, wonder if it has anything to do with all those Skrulls who have recently surfaced"--Provided by publisher.

"With her unique combination of wit, empathy and squirrel powers, computer science student Doreen Green is all that stands between the Earth and total destruction! Well, Doreen plus her friends Tippy-Toe (a squirrel) and Nancy (a regular human). So mainly Squirrel Girl. Then, what hope does Earth have if Doreen gets hurled back in time and erased from history? Some hope, hopefully, as Howard the Duck is waiting impatiently for a crossover! And if one animal encounter isn't enough, prepare for Swarm, a buzzkill made of bees, and Mole Man, the subterranean super villain looking for love! But you're not here for flowers and kissing, you're all about computer science and super-heroics. Get both--and more--in a showdown with Count Nefaria!"--Back cover.

Describes the young Magneto, Erik Magnus, and his efforts to build an army of mutants.

A collection of adventures featuring the mutant superheroes known as the X-Men.

"Introduces readers to the mysterious Crooked Forest in Poland and the debate about what caused this antural phenomenon"--Amazon.

"Say hi to Morrey Gibbs! A fisher-boy in a flooded world overrun with dangerous mutated animals known as 'anomals,' he's got his own problems to worry about. Namely, how everything he touches turns to gold! Sure it sounds great, but gold underpants aren't exactly stylish -- or comfortable. With the Obtainers hot on their heels and the Art Dealer stepping up his efforts to get his hands on King Midas' powers, Morrey, Shelly and Zaka must use everything they have to keep this powerful Artifact safe--and uncover the truth about Morrey's father"--Provided by publisher.