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Life Science articles — Page 15

Read about living things, from cells and plants to animals and the human body. Choose an article below; its reading controls let you move between the available levels.

5,533 public articles · Page 15 of 116

Herbivore

Some animals eat plants. They eat leaves and seeds. Some even eat fruit. This helps them grow big. It is fun to watch them eat. Do you see animals eating plants?

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Herding dog

Some dogs help move animals. They move sheep and cows. These dogs are very strong. They help people on farms. They are great helpers. Do you like dogs?

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Heron

Herons are birds with long legs. They have very long necks. They use long beaks to catch fish. They live near water. These birds are very cool to see! Can you find a heron in a pond?

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Herring

Herring are small fish. They live in the big ocean. They swim in huge groups. Many people eat them for food. They can be tasty and salty. Do you like fish?

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Hexapoda

Some bugs have six legs. They have three body parts. They live on land. These bugs help our world. They are very small. Can you find a bug with six legs?

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Hibernation

Some animals sleep all winter. They sleep to save food. Their bodies slow down. This helps them stay alive. It is like a long nap. Do you like to sleep?

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Hickory

Hickory trees are very strong. They grow big nuts. Some nuts are good to eat. People use the wood for tools. It is a very useful tree. Do you like nuts?

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Hippocratic Corpus

Long ago, people wrote books about health. These books help doctors today. They show how to help sick people. They use facts to find cures. It is a big set of books. Do you want to learn more?

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Hippopotamus

The hippo is a very big animal. It lives in rivers and lakes. It likes to stay in the water. This helps it stay cool. It eats grass at night. Can you see its big mouth?

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History of biology

People study living things. They look at plants and animals. This helps us learn about life. It helps us stay healthy. We can learn so much! Do you like nature?

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HIV

HIV is a tiny germ. It goes inside the body. It can make people sick. It hurts the parts that fight germs. Doctors help people stay well. Can you imagine something so small?

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Hoatzin

The hoatzin is a strange bird. It lives in wet woods. Baby birds have claws on their wings. They use them to climb trees. This helps them stay safe. Can you find a bird with wing claws?

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Homo erectus

Long ago, a new kind of person lived. They walked on two legs. They used big stone tools. They even used fire. They lived in many far places. Do you want to see their tools?

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Homo habilis

A long time ago, people lived in Africa. These people were very handy. They made tools from stone. These tools helped them find food. They lived in groups. Do you like to use tools?

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Honey badger

The honey badger is a tough animal. It has very loose skin. This helps it twist and turn. It can live in many places. It is very strong. Do you think it is brave?

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Honeyeater

Honeyeaters are small birds. They live in many places. They like to eat sweet juice from flowers. They also eat bugs. These birds help plants grow. Do you like birds?

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Honeyguide

Some birds are called honeyguides. They show people where bees live. The birds wait for the honey to be taken. Then they eat the wax. It is a smart way to find food. Do you like honey?

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Hoopoe

The hoopoe is a colorful bird. It has a crown of feathers. It can move its crown up and down. These birds eat many bugs. They help by eating pests. Do you like bright birds?

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Hornbill

Hornbills are special birds. They have very long beaks. These beaks can be bright colors. The birds eat fruit and small bugs. They live in warm places. Do you like bright colors?

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Horned lizard

The horned lizard is a small lizard. It has spikes on its back. It lives in dry places. These lizards stay very still to hide. Some can even squirt blood from their eyes! Can you find a horned lizard?

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Hornet

Hornets are big wasps. They live in nests made of wood. A queen lives in the nest. She lays eggs. The workers help the queen. They find food for the babies. Do you see a hornet?

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Hornwort

A hornwort is a tiny plant. It likes to live in damp places. Some grow on tree bark. They have long parts that look like horns. These plants are very small. Can you find one in a garden?

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Horseradish

Horseradish is a plant with a big root. The root is white. It has a very strong taste. It can make your nose feel tingly. People use it in food. Do you like spicy food?

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Hound

Some dogs are called hounds. They help people hunt. Some are very fast. Some have a great nose. They are very good dogs. Do you like dogs?

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Housefly

The housefly is a small bug. It can fly around your home. It likes to eat food. It can land on walls and ceilings. It can even walk upside down! Do you see flies in your house?

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House sparrow

The house sparrow is a small bird. It likes to live near people. Some are brown and some are grey. They eat seeds and tiny bugs. They are very busy birds! Do you see them in your yard?

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Human brain

Your brain is very important. It tells your body what to do. It helps you see and hear. It helps you think and play. It is inside your head. Do you know what your brain does?

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Human eye

Your eyes help you see. They sit in your face. They take in light. This helps you see the world. It is so cool! Do you like to look at colors?

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Human genome

Our bodies have a set of plans. These plans tell us how to grow. They are found in every part of you. They help make you who you are. It is a big job! Do you want to learn more?

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Human leg

Your legs help you move. They help you stand up tall. They also help you dance. We use them to walk every day. Your legs are very strong. Can you wiggle your toes?

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Human papillomavirus infection

Tiny germs can cause warts. These warts grow on skin. Most of the time, your body fights them. They go away on their own. This helps you stay well. Do you know about germs?

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Human tooth

Your teeth help you eat. They cut and crush your food. Some teeth are for biting. Some teeth are for grinding. You get two sets of teeth. First you get baby teeth. Then you get adult teeth. Do you have your big teeth…

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Human voice

You use your voice to talk. Air moves from your lungs. It makes parts in your throat shake. This makes sound. You can sing or laugh too. Your voice is special. Can you sing a song?

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Hummingbird

Hummingbirds are very small birds. They live in the Americas. They fly very fast. Their wings make a hum sound. They drink food from flowers. This helps them stay strong. Can you hear their wings?

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Humpback whale

The humpback whale is a big whale. It lives in the deep blue sea. It eats tiny fish and small shrimp. These whales can sing songs to each other. They are very fun to see! Do you like big whales?

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Hybrid (biology)

A hybrid is a new kind of living thing. It comes from two different parents. One parent might be a horse. The other might be a donkey. This makes a mule. Hybrids can be very strong. They are very cool to see. Can you…

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Hyena

Hyenas are special animals. They live in Africa. Some eat food left behind. This helps the land stay clean. They are very important. Do you like learning about them?

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Hylidae

Some frogs live in trees. They have sticky toes to help them climb. These frogs eat bugs for food. Some frogs even live under the ground. They are very cool to see. Do you like frogs?

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Hymenoptera

Bees, ants, and wasps are bugs. They live in many places. Some are very small. Some are quite large. They help plants grow. Do you see them in your yard?

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Hypericum

Some plants have bright yellow flowers. They grow in many places. Some are called St. John's wort. They have tiny dots on their leaves. These dots help keep bugs away. These plants are very pretty. Do you like yellow…

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Hypertension

Your blood moves through your body. Sometimes the blood pushes too hard. This can happen for a long time. It can make you sick. You might not even feel it. Eating less salt helps. Moving your body helps too. Do you…

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Hypha

A hypha is a tiny tube. It is part of a fungus. These tubes grow in long lines. They grow at the very tips. They help the fungus find food. Can you find them in the dirt?

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Hypnosis

A person can focus very hard. They may feel very calm. They listen to special ideas. These ideas help them feel good. It is a deep way to think. Do you ever focus like that?

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Hypothermia

Being too cold can be bad. It happens in cold air or water. Your body might shake to stay warm. You may feel very sleepy too. Warm clothes can help you. Stay safe in the cold! Do you like the snow?

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Hypoxia (medicine)

Our bodies need air to work. Sometimes, we do not get enough air. This can happen in our whole body. It can happen in just one part. This can make our skin look blue. Do you know how we breathe?

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Hyrax

The hyrax is a small animal. It lives on big rocks. It has thick fur to stay warm. It likes to sit in the sun. We can see them in Africa. Do you like small animals?

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Ibis

Ibises are birds with long legs. They live near water. They use long beaks to find food in the mud. This helps them eat. They are very cool birds. Do you like birds?

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Icterid

These birds are very colorful. They can be black or yellow. Many live in warm places. They eat seeds and fruit. These birds are fun to see. Can you find one?

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