検索キーワード： 生物学

Measles is an infectious rash that killed millions of people every year before a vaccine was created in 1963. Listen to this book to learn more about the history of this infectious disease.

Have you ever heard of a male fish that carries eggs? What about a fish that gives birth to live young? Young listeners will learn about seahorses, guppies, and other fish with unusual life cycles.

Hi, there! I'm a monarch butterfly. You’ve probably seen me fluttering around, but have you ever stopped to think about where I came from? Learn more about my life cycle and how I went from a tiny little caterpillar to a beautiful butterfly.

Genes, although tiny and imperceptible, play a pivotal role in shaping our physical characteristics, unless modified by medical intervention. Originating from the first man and woman, genes come in various types, with Y-Chromosomes and mtDNA being extensively studied by geneticists. Y-DNA is inherited exclusively from fathers to sons, perpetuating through generations of male lineage, while mtDNA is passed from mothers to all their offspring, albeit only daughters can transmit it further.

¡Hola! Soy un gran tiburón blanco. No te espantes por mis dientes filosos. Comencé la vida siendo mucho más pequeñito, ¡al igual que tú! Aprende más sobre el ciclo de mi vida desde que era una cría hasta ser el mayor depredador del mar.

Hi, there! I'm a red-eyed tree frog. You might think red eyes would make me stand out, but my green skin helps me blend in with my surroundings. Learn more about my life cycle and how I went from a teeny tiny tadpole to a full-grown frog.

Have you ever heard of a frog that freezes solid in winter? What about a toad that carries its eggs on its back? Young listeners will learn all about wood frogs, Suriname toads, and other amphibians with unusual life cycles.

Many animals, both big and small, sleep through long, cold winter months. Learn the process of hibernation and different ways animals adapt to survive in harsh climates.

From butterflies to sunflowers, each living thing follows a life cycle. Uncover the facts of both animal and plant life cycles, and learn how people's actions can impact them.

Zebras travel across the Kalahari Desert each spring in search of food. Whales swim to warmer water every winter. Take a journey to discover the wonders of migrating animals, including why they migrate and how far they travel.