Affection
Affection is a warm feeling. It shows that you care. You can use hugs or kind words. It helps us feel close to others. It is good for our bodies. Do you like to give hugs?
Early Reader · Change the reading level on the articleLife Science articles — Page 31
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 31 of 116
African bullfrog
This is a very big frog. It lives in many hot places. The frog can hide in a skin coat. This helps it stay wet. It eats many small things. Do you like big frogs?
Early Reader · Change the reading level on the articleAfrican bush elephant
The African bush elephant is very big. It lives in Africa. It has a long nose. It has large ears to stay cool. It eats grass and leaves. These animals are special. Do you like elephants?
Early Reader · Change the reading level on the articleAfrican civet
The African civet is a wild animal. It has black and white spots. It sleeps during the day. It wakes up at night. It eats many things like fruit and bugs. It is very cool to see. Can you find its spots?
Early Reader · Change the reading level on the articleAfrican elephant
African elephants are very big. They have grey skin. They have long tusks. They use their noses to eat. These animals live in Africa. They are amazing to see. Do you like elephants?
Early Reader · Change the reading level on the articleAfrican forest elephant
The forest elephant is a big animal. It lives in the green woods. It eats leaves and fruit. These elephants help new trees grow. They are very special to the forest. Do you like elephants?
Early Reader · Change the reading level on the articleAfrican palm civet
The African palm civet is a small animal. It has dark spots on its back. It lives in many trees. It likes to eat fruit. This animal is very special. Do you like to eat fruit too?
Early Reader · Change the reading level on the articleAfrican penguin
This is an African penguin. They live by the sea. They have black and white feathers. They eat fish and squid. These birds make loud noises. Can you make a loud noise?
Early Reader · Change the reading level on the articleAfrican sacred ibis
This is a white bird. It has a black head. It has a long, curved beak. It lives in Africa. Long ago, people in Egypt loved them. Can you see the bird fly?
Early Reader · Change the reading level on the articleAfrican spurred tortoise
This is a big tortoise. It lives in a hot place. It digs deep holes in the dirt. These holes keep it cool. It eats green grass and plants. Can you see its shell?
Early Reader · Change the reading level on the articleAfrican swine fever virus
A tiny germ makes pigs sick. It can make their ears red. It does not make people sick. This germ stays in wild pigs and ticks. We must keep pigs safe. Do you want to learn more?
Early Reader · Change the reading level on the articleAfrican traditional medicine
People in Africa use plants to feel better. Some plants help with hurts. They use leaves and bark too. This helps many people stay well. It is a very old way. Do you like plants?
Early Reader · Change the reading level on the articleAfrican village dog
These dogs live in Africa. They came from a long time ago. They were not made by people. They are special and unique. They help people every day. Do you like dogs?
Early Reader · Change the reading level on the articleAfrican wild ass
The wild ass lives in the hot desert. It has big ears. These ears help it hear well. It can live with very little water. These animals are very special. Do you want to see them?
Early Reader · Change the reading level on the articleAfrican wild dog
The painted dog lives in Africa. It has many colors on its fur. These dogs live in a group. They help each other find food. This helps the whole pack stay strong. Do you like colorful animals?
Early Reader · Change the reading level on the articleAfrocarpus
These are tall trees from Africa. They stay green all year. Some grow very high. People use their wood for fine chairs. They like cool, wet places. Can you find a green tree?
Early Reader · Change the reading level on the articleAgalychnis
These are tree frogs. They live high in trees. Some are green. Some can change color. They help the forest stay busy. Can you see their big eyes?
Early Reader · Change the reading level on the articleAgamidae
Some lizards look like dragons. They live in warm places. Many have strong legs. They like to sit in the sun. This helps them stay warm. Some even glide through trees. Do you like lizards?
Early Reader · Change the reading level on the articleAgaricus bisporus
This is a common mushroom. It can be white or brown. Many people eat them for food. They grow in rich soil. We see them in many countries. Do you like to eat mushrooms?
Early Reader · Change the reading level on the articleAgathis australis
The kauri is a giant tree. It lives in New Zealand. It can grow very, very big. This tree helps the forest grow. It is a wonderful tree to see. Do you like big trees?
Early Reader · Change the reading level on the articleAgelenidae
These spiders are called funnel weavers. They build a flat web. The web has a shape like a funnel. They run very fast on the web. They wait for food to fall in. Can you see a web in your yard?
Early Reader · Change the reading level on the articleAgent Orange
Agent Orange was a strong liquid. It was used to kill plants. It was sprayed from planes and boats. This made many people and plants sick. It was a very hard time. Do you want to learn more?
Early Reader · Change the reading level on the articleAgeusia
Sometimes we cannot taste food. We cannot taste sweet or salty things. This can happen when we are sick. It makes eating less fun. We can talk to a doctor. Can you taste your lunch today?
Early Reader · Change the reading level on the articleAgouti
The agouti is a small animal. It lives in the woods. It has brown hair. It can run very fast. It likes to eat fruit. It is a busy eater. Can you see its short tail?
Early Reader · Change the reading level on the articleAgricultural biotechnology
Scientists help our food grow. They use tools to change plants. This helps plants stay healthy. It can also make food better for you. This is very helpful for farmers. Do you like eating fruit?
Early Reader · Change the reading level on the articleAgrobacterium tumefaciens
Tiny bugs live in the dirt. Some bugs make plants sick. They make big bumps on stems. These bumps can hurt the plant. We must help our plants stay well. Do you like plants?
Early Reader · Change the reading level on the articleAgroecology
We study how farms work. We look at plants and bugs. We also look at people. This helps us grow good food. It helps the Earth too. Do you like to garden?
Early Reader · Change the reading level on the articleAhaetulla
These snakes are long and thin. They are often bright green. They live in leafy trees. They hunt small lizards for food. Some are even orange or brown. They have very special eyes. Do you like snakes?
Early Reader · Change the reading level on the articleAiluridae
The red panda is a special animal. It is the only one left today. Long ago, its cousins lived too. They lived in many places. Now, we can learn about them. Do you like red pandas?
Early Reader · Change the reading level on the articleAimé Bonpland
Aimé was a man who loved plants. He traveled to far places. He found many new plants. He even climbed a big mountain. His work helps us learn about nature. Do you like to look at plants?
Early Reader · Change the reading level on the articleAirborne transmission
Tiny bits can float in the air. They come from a sneeze or a cough. These bits can travel far. We breathe them in through our nose. This can make us sick. Can you stay healthy by being careful?
Early Reader · Change the reading level on the articleAizoaceae
Some plants look like stones. They live in dry places. Some have shiny parts that look like ice. You can even eat some of them. They are very cool to see! Do you like plants that look like rocks?
Early Reader · Change the reading level on the articleAlanine
Our bodies make a tiny building block. It helps build our muscles. We find it in meat. It is very small. We do not need to eat it to stay well. Our bodies can make it. Do you want to learn more?
Early Reader · Change the reading level on the articleAlbert Günther
Albert was a man who loved animals. He studied many fish and snakes. He found many new kinds of life. His work helps us know animals today. He was a great helper to science. Do you like animals too?
Early Reader · Change the reading level on the articleAlbrecht von Graefe (ophthalmologist)
Albrecht was a doctor for eyes. He helped people see better. He made a new tool for eye care. This tool helped many people. His work was very good. Do you like to look at things?
Early Reader · Change the reading level on the articleAlbrecht von Haller
Albrecht was a man who loved to learn. He studied how the body works. He also looked at many plants. He wrote many books about them. He was a very smart man. Do you like to learn new things?
Early Reader · Change the reading level on the articleAlcyonacea
Soft corals live in the sea. They look like fans or whips. They can be red or yellow. They help many fish find homes. They are very pretty to see. Do you like the ocean?
Early Reader · Change the reading level on the articleAldabra giant tortoise
The giant tortoise is very big. It lives on sunny islands. It has a hard shell. The shell is brown. The tortoise eats green leaves. It can live a long time. Do you like big animals?
Early Reader · Change the reading level on the articleAldosterone
Your body has a tiny helper. It helps keep you healthy. It works to keep salt in your body. It also helps keep your blood moving well. This is a very big job! Do you want to learn more?
Early Reader · Change the reading level on the articleAldrin
Aldrin was a powder used on plants. It was used to stop bugs. But it could hurt the earth. Now, most places say we cannot use it. This helps keep our world safe. Do you like to help nature?
Early Reader · Change the reading level on the articleAlec Jeffreys
Alec Jeffreys is a smart man. He found a way to study our tiny parts. This helps us know who people are. It helps the police find the truth. His work is very big. Do you like to learn new things?
Early Reader · Change the reading level on the articleAleksei Leontiev
A man named Aleksei studied how we think. He lived in a place called Moscow. He worked at a big school. He helped us learn how people do things. His work helps us understand our minds. Do you like to learn new things?
Early Reader · Change the reading level on the articleAletta Jacobs
Aletta Jacobs was a great doctor. She was the first woman to study at a big school in her land. She helped many women and children stay well. She also fought so women could vote. She worked hard to help everyone. Do…
Early Reader · Change the reading level on the articleAlexander Gettler
Alexander was a smart man. He worked in a lab. He looked for bad things in the body. This helped people find the truth. He was a great helper. Do you like to learn new things?
Early Reader · Change the reading level on the articleAlexander S. Wiener
A man named Alexander studied blood. He found new things in our blood. This helped doctors help sick babies. His work saved many lives. He was a very smart doctor. Do you like to learn about science?
Early Reader · Change the reading level on the articleAlexandre Lacassagne
Alexandre was a doctor in France. He studied how people act. He looked at how the world around us helps shape us. This work helped solve many puzzles. He was a very smart man. Do you like to solve puzzles?
Early Reader · Change the reading level on the articleAlexis Carrel
Alexis Carrel was a doctor. He helped fix small tubes in the body. He also made a pump to help organs. This work helped many people. Can you be a doctor one day?
Early Reader · Change the reading level on the articleAlfred Binet
Alfred Binet was a smart man. He wanted to help kids in school. He made a special test. This test helped teachers see how kids learn. It was a very big idea. Do you like to learn new things?
Early Reader · Change the reading level on the article