Amphicyonidae
Some old animals lived long ago. They looked like bears and dogs. They could be big or small. They ate meat to grow. These animals are gone now. Do you like big animals?
Early Reader · Change the reading level on the articleLife Science articles — Page 33
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 33 of 116
Amphioctopus marginatus
The coconut octopus lives in the sea. It likes to hide in shells. It even carries shells to make a home. It can walk on two arms. It looks like a rolling coconut. Do you like to hide too?
Early Reader · Change the reading level on the articleAmphipoda
Some small animals live in the water. They can be very tiny. Some are big too. They eat bits of food. They live in seas and lakes. We can find them in many places. Do you like looking for small things?
Early Reader · Change the reading level on the articleAmphisbaenia
These are worm lizards. They live under the dirt. They have very long bodies. Most of them have no legs. They can move in the soil. Do you want to find one?
Early Reader · Change the reading level on the articleAmphotericin B
This is a special medicine. It fights bad germs. These germs can make people very sick. The medicine helps people feel better. Doctors give it to them. Do you want to learn more?
Early Reader · Change the reading level on the articleAmygdala
Your brain has two small parts. They help you feel things. They help you remember. They help you stay safe. They tell you if you are scared. Do you feel happy or sad today?
Early Reader · Change the reading level on the articleAnabaena
Anabaena is a tiny living thing. It lives in the water. It helps some plants grow fast. It can also be bad for pets. We must be careful. Do you like to look at water?
Early Reader · Change the reading level on the articleAnacardiaceae
Some plants make tasty food. They grow in warm places. You might eat a mango or a cashew. These plants have a sticky sap. Some sap can hurt your skin. Do you like mangoes?
Early Reader · Change the reading level on the articleAnaconda
Anacondas are big snakes. They live in the water. They live in South America. These snakes are very heavy. They can be very long too. It is fun to learn about them. Do you like snakes?
Early Reader · Change the reading level on the articleAnaerobic digestion
Tiny bugs eat old waste. They work without any air. This makes a special gas. We can use the gas for power. It helps our world stay clean. Can you find things that bugs eat?
Early Reader · Change the reading level on the articleAnaerobic exercise
Some exercise is very fast. It uses food for energy. It does not use the air we breathe. This helps you get strong. It can make your muscles tired. Do you like to run fast?
Early Reader · Change the reading level on the articleAnaerobic respiration
Some tiny living things do not need air. They get food in a different way. They live in dark, wet places. This helps our whole world stay healthy. It is very neat to learn about! Can you find a wet place?
Early Reader · Change the reading level on the articleAnal hygiene
We wash to stay clean. We use water or paper. This helps keep us healthy. It stops germs from spreading. It is good to be clean. Do you wash your hands too?
Early Reader · Change the reading level on the articleAnancus
Anancus was a big animal. It looked like an elephant. It had long, straight tusks. It lived a long time ago. It ate plants and fruit. Do you like elephants?
Early Reader · Change the reading level on the articleAnaphylaxis
Some people have a big allergy. It can happen fast. It can make your skin itchy. It can make it hard to breathe. You must see a doctor right away. Can you stay safe?
Early Reader · Change the reading level on the articleAnaspida
These were small fish. They lived in the sea long ago. They did not have hard bone armor. Instead, they had tiny scales. These fish had big eyes. Do you like looking at fish?
Early Reader · Change the reading level on the articleAnatidae
Ducks, geese, and swans are water birds. They live on most lands. They can swim and float. They have webbed feet to help. Many of these birds fly far. Do you like to see them?
Early Reader · Change the reading level on the articleAnatomical variation
Our bodies can look a little different. Some people have extra parts. Some people are missing a part. This is normal for us. It is not a sickness. We are all special. Do you look like your friends?
Early Reader · Change the reading level on the articleAncel Keys
Ancel Keys was a smart man. He studied what we eat. He wanted to help people stay healthy. He found ways to make good food. His work helps us today. Do you like to eat well?
Early Reader · Change the reading level on the articleAnchiornis
This was a small dinosaur. It was like a crow. It had feathers on its arms. It also had feathers on its legs. It looked like it had four wings! It lived a long time ago. It is fun to learn about old animals. Do you…
Early Reader · Change the reading level on the articleAncient Egyptian medicine
Long ago, people in Egypt were doctors. They used plants to make food for the sick. They could even fix broken bones. This helped people stay well. It is very interesting! Do you like learning about the past?
Early Reader · Change the reading level on the articleAncient Greek medicine
Long ago, people in Greece learned about health. They used tea and baths to feel better. Some people went to special temples to rest. They even used dogs to help heal wounds. Doctors still use a snake sign today. Do…
Early Reader · Change the reading level on the articleAncylostoma
Some tiny worms live in pets. They live in cats and dogs. These worms are very small. They can hide in animals. It is good to stay safe. Do you like pets? We must care for our pets.
Early Reader · Change the reading level on the articleAndean condor
The condor is a big bird. It lives in high mountains. It has black feathers and a white neck. It eats meat left by other animals. This bird can live a long time. Can you see its big wings?
Early Reader · Change the reading level on the articleAndrewsarchus
A long time ago, a big animal lived. It lived in a place called China. It had a very long head. It ate many kinds of food. It was a very special animal. Do you want to see its teeth?
Early Reader · Change the reading level on the articleAndrew Wakefield
A man named Andrew was a doctor. He told people that medicine was not safe. This was not true. He did not tell the truth. This made many people sick. We must look for real facts. Do you like to learn the truth?
Early Reader · Change the reading level on the articleÂne Corse
This is a small donkey. It lives on a French island. The donkey is often grey. These donkeys are hard to find now. We must help them stay safe. Do you like donkeys?
Early Reader · Change the reading level on the articleAnesthesiology
Doctors help you stay safe. They help you not feel pain. This happens during a big fix. They watch your body closely. They help you feel better fast. It is a very big job. Do you want to be a doctor?
Early Reader · Change the reading level on the articleAngelo Mariani (chemist)
Angelo Mariani made a special drink. He worked in a shop for medicine. He mixed wine with leaves. This drink made him very famous. It helped him earn much money. Do you like new drinks?
Early Reader · Change the reading level on the articleAngelshark
The angel shark lives in the sea. It hides in the sand. It stays very still to catch food. This shark helps the ocean stay healthy. Do you like sharks?
Early Reader · Change the reading level on the articleAngioplasty
Doctors help your blood flow. They use a tiny balloon. The balloon goes inside a tube. It grows big to make space. This helps your body stay well. Can you imagine a tiny balloon? It helps you feel better.
Early Reader · Change the reading level on the articleAngora goat
This is an Angora goat. They have long, curly hair. Most are white. Some are black or brown. People use their hair to make soft things. They are very pretty. Do you like curly hair?
Early Reader · Change the reading level on the articleAngora rabbit
Angora rabbits have very long hair. This hair is soft and silky. People use it to make warm clothes. It helps keep us cozy. We must brush them to keep them happy. Do you like soft things?
Early Reader · Change the reading level on the articleAnguinae
Some lizards have no legs. They look like snakes. Their tails can snap off. This helps them stay safe. They eat small bugs. These animals live in many lands. Do you like lizards?
Early Reader · Change the reading level on the articleAngus MacAskill
Angus was a very tall man. He was very strong too. People called him a giant. He was kind and gentle. He lived a long time ago. Do you think he was big?
Early Reader · Change the reading level on the articleAni (bird)
Anis are large black birds. They have long tails. They live in noisy groups. They build nests together in trees. They eat bugs and small frogs. They are fun to watch! Do you like birds?
Early Reader · Change the reading level on the articleAnimal breeding
People help animals have babies. They pick the best moms and dads. This helps animals grow well. It helps them make more milk or wool. This helps us too. It is very smart work. Do you have a pet at home?
Early Reader · Change the reading level on the articleAnimal cognition
Animals can think in many ways. Some use tools to find food. Birds and fish can learn too. This helps them stay safe. It is fun to watch them! Do you have a smart pet?
Early Reader · Change the reading level on the articleAnimal communication
Animals talk to each other. They use sounds and colors. Some use smells too. This helps them find food. It also keeps them safe. How do your pets talk to you?
Early Reader · Change the reading level on the articleAnimal consciousness
Animals can feel things too. They know what is around them. Some birds and fish are very smart. This matters because we must be kind. We can learn about their lives. Do you have a pet at home?
Early Reader · Change the reading level on the articleAnimal training
People teach animals new things. They can learn to help us. They can learn to play. You can give them food as a prize. This helps them learn fast. It is fun to learn together. Do you have a pet?
Early Reader · Change the reading level on the articleAnkle
Your ankle is a special part. It is where your leg meets your foot. It helps you stand up tall. It also helps you move and jump. It keeps you from falling over. Can you feel your ankle move?
Early Reader · Change the reading level on the articleAnkylosauria
Some dinosaurs had hard armor. They had bony plates on their backs. This helped them stay safe. They were big and ate plants. These dinosaurs lived a long time ago. Do you like dinosaurs?
Early Reader · Change the reading level on the articleAnkylosaurus
The Ankylosaurus was a big dinosaur. It had hard armor on its skin. It had a heavy club on its tail. This helped it stay safe. It lived a long time ago. Can you imagine a dinosaur with a club tail?
Early Reader · Change the reading level on the articleAnna Atkins
Anna Atkins loved plants. She made blue pictures of seaweed. She put plants on special paper. Then she used the sun. This made pretty blue shapes. Do you like blue plants?
Early Reader · Change the reading level on the articleAnnonaceae
Some plants grow yummy fruit. They live in warm places. The fruit can be sweet. People like to eat them. They smell very nice too. Do you like fruit?
Early Reader · Change the reading level on the articleAnnona squamosa
The sugar apple is a sweet fruit. It grows on a small tree. The fruit is green and bumpy. It tastes like soft custard. You can eat the white part. Do you like sweet fruit?
Early Reader · Change the reading level on the articleAnnoyance
Sometimes you feel a little mad. It can be hard to think. A song on repeat might do this. A poke in the side can too. It is okay to feel this way. Have you felt this way today?
Early Reader · Change the reading level on the article