Follow along and see how different kinds of baby animals grow and change! All animals start as babies. Even though they all look very different, they all have the same basic needs to grow up. Learn about baby penguins, kittens, blue whales, pandas, frogs, snakes, and more! The colorful images of adorable baby animals and easy-to-read text in this science reader will keep students engaged from cover to cover. This reader also includes instructions...

Presents animals that use camoflauge to survive, including the harlequin filefish, the gliding lizard, and the cuckoo finch.

"A natural history of cheating from selfish genes to lying politicians. Nature is rife with cheating. Possums play possum, feigning death to cheat predators. Crows cry wolf to scare off rivals. Amphibians and reptiles are inveterate impostors. Even genes and cells cheat. The Liars of Nature and the Nature of Liars explores the evolution of cheating in the natural world, revealing how dishonesty has given rise to wondrous diversity. Blending cutting-edge...

WHICH CAME FIRST? The chicken or the egg? Simple die-cuts magically present transformation-- from seed to flower, tadpole to frog, caterpillar to butterfly. The acclaimed author of Black? White! Day? Night! and Lemons Are Not Red gives an entirely fresh and memorable presentation to the concepts of transformation and creatiity. Seed becomes flower, paint becomes picture, word becomes story--and the commonplace becomes extraordinary.

"In this book, early fluent readers will learn how cuttlefish use colors to camouflage themselves, hunt, attract mates, and warn off predators. Color photos and . . . leveled text will engage young readers as they learn more about cuttlefish, their habitat, behaviors, and science behind their amazing, bright colors. An infographic aids understanding, and an activity offers readers an opportunity to extend discovery"--Provided by publisher.

A compelling account of how the impact of a giant asteroid may have killed the Earth's dinosaurs.

We see how the tides, waves, and ocean current shape the living creatures that depend on them. Three main types of environment--the rock shore, the rim of sand and the coral coast found on the American Atlantic coast are studied in detail.

The Oedogoniales are remarkable filamentous green algae. Their method of cell elongation is unique, utilizing a donut-shaped ring of soft wall material which is stretched to form the new daughter cell. While Oedogonium is a simple filament, the related Bulbochaete and Oedocladium are branched and Bulbochaete differentiates long hair cells. The zoospore is large and multiflagellated. Sexual reproduction is oogamous and either “macrandrous” or “nannandrous.”...

Combining images of living plant stages with computer simulations allows you to easily bridge the gap between the familiar plant and the micro-environment contained within it. Three dimensional animations take you in and around reproductive structures such as the sorus, sporangium, and antheridium and archegonium. You see dynamic events such as spore formation, spore release, prothallus formation, sperm release, fertilization and embryo growth..

Mitosis requires cells to organize numerous jumbled chromosomes and then separate them with absolute fidelity into two equal groups. How this extraordinary process is accomplished is still poorly understood.. This video reveals the events of mitosis at a level of detail usually seen only in research laboratories. In addition, two Appendices show mitosis in a classical system, the diatom cell, and some experiments on living cells that illustrate why...