検索キーワード： 生物学

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.

Animals are living things. They need certain things to grow and live. What are they? Let’s investigate what animals need to survive!

¡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.

Bald eagles, bees, and bats all fly. But a bee is an insect. A bat is a mammal. And a bald eagle is a bird! Why are these animals sorted into different groups? Let’s investigate animal classification!

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.

This story about Jane Marie's journey with Type 1 Diabetes will answer many of the common questions about T1D. It will also help you better understand your friend, even if their journey is a little bit different. When you have more questions, just ask your friend, a teacher, a parent, or another adult to help you find out answers and, perhaps, even more questions to ask!

Have you ever heard of a mammal that lays eggs? What about a mammal that can give birth to 50 babies at once? Young listeners learn all about echidnas, Tasmanian devils, and other mammals with unusual life cycles.

A seed falls from a plant. A mouse eats the seed. An owl eats the mouse. Each animal gets energy from its food. How does energy flow from one living thing to another? Let’s investigate food chains and food webs!