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Life Science articles — Page 94

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 94 of 116

Explore related Science Lab activities about plants, animals and ecosystems or the human body, each at five reading levels.

Protoceratidae

Some old animals looked like deer. They lived in North America. The males had big horns. These horns grew above their noses. They ate tough grass for food. Do you think they lived in groups?

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Protoceratops

A small dinosaur lived in Asia. It had a big face. It had a neck frill. This helped it look strong. It ate plants for food. It lived in a big group. Do you like dinosaurs?

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Protostome

Many small animals are in this group. Some have shells. Some look like worms. They can be very small. They live all over the world. We see them every day. Can you find a bug?

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Protozoa

Tiny living things are everywhere. They are made of just one cell. They eat tiny bits of food. Some live in water. Some live in wet dirt. We cannot see them without help. Can you find them in a drop of water?

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Protura

Tiny animals live in the dirt. They are very, very small. They do not have eyes. They also have no wings. These little bugs help the soil. They are fun to find! Can you look for them?

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Prowfish

The prowfish is a sea fish. It lives in the deep ocean. It likes to hide near rocks. Young fish eat jellyfish. They are very cool to see. Do you like fish?

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Prunus

Some trees grow sweet fruit. They grow plums and cherries. They also grow peaches. These fruits have a hard pit inside. We can eat the sweet part. Do you like fruit?

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Prunus avium

The sweet cherry is a tree. It grows big and tall. It has pretty white flowers in spring. Birds love to eat the red fruit. The fruit is very sweet. Do you like to eat cherries?

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Prunus serotina

The black cherry is a big tree. It grows in many places. It has small white flowers. Birds love to eat its fruit. This tree helps many bugs live. It is a very busy tree! Do you like to see trees?

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Pseudevernia furfuracea

Tree moss grows on tree bark. It likes pine trees. It helps us know if the air is clean. People use it to make smells for perfume. It is a very special plant. Can you find it on a tree?

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Pseudomonas aeruginosa

Tiny germs live in water and soil. They can be blue and green. Some germs can make people sick. They like to stay in wet places. They can even eat oil! Do you like to play in the water?

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Psittacosaurus

A parrot lizard lived long ago. It had a beak like a bird. It walked on two legs. It lived in Asia. This dinosaur is very special to us. Can you find its beak?

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Psocodea

Small bugs live in many places. Some live on tree bark. Some live in old books. They are very tiny. You can look for them! Can you find one?

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Psocoptera

Some tiny bugs live in old books. They like to eat the glue. Other bugs live on trees. They eat green stuff on bark. These bugs are very small. They do not bite you. Do you want to look for them?

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Psophia

These birds live in big forests. They look like tall chickens. They have soft, dark feathers. They make loud calls. They run very fast on the ground. They like to eat fruit. Can you hear them call?

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Psoriasis

Some people have itchy skin. It can look red or pink. The skin may feel dry. You cannot catch it from others. It can happen to anyone. Does your skin ever feel itchy?

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Psychodidae

Some flies live in drains. They look like tiny moths. They have hairy wings. They like wet places. These flies can be a bother. Do you see them near your sink?

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Psychological research

Some people study how we act. They look at how we think. They watch what we do. This helps us learn about people. It helps us learn about you. Do you wonder why we do things?

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Pteranodon

The Pteranodon was a flying animal. It lived a long time ago. It had no teeth. This helped it live by the sea. It was very big. Can you imagine flying like this?

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Pteraspis

Pteraspis was a fish from long ago. It lived in the sea. It had hard plates for armor. It had wing-like parts to help it swim. It ate tiny things in the water. Do you like old fish?

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Pteridosperm

Long ago, plants looked like ferns. These plants grew seeds. They lived a very long time ago. We find their parts in rocks today. They help us learn about the past. Can you find a fern?

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Pterocarpus indicus

This is a very big tree. It grows in warm places. It has pretty yellow flowers. The wood can make nice chairs. It is the national tree of the Philippines. Do you like big trees?

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Pterodactylus

This was a flying reptile. It lived a long time ago. It was not very big. It had skin for wings. It ate many small things. We can find its bones in the ground. Do you like flying animals?

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Pterodaustro

A long time ago, a flying animal lived in the south. It had a very long face. It used its teeth like a comb to find food in the water. This helped it eat small things. It was a very cool flyer! Do you like flying…

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Public aquarium

An aquarium is like a zoo for water. It has big tanks for fish. You can see sharks and whales. It helps us learn about sea life. It is fun to visit! Do you like fish?

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Pudu

The pudu is a tiny deer. It lives in the forest. It is the smallest deer in the world. This little deer is very cute. We must help keep them safe. Do you like small animals?

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Puffball

A puffball is a round fungus. It looks like a little ball. It holds a cloud of dust inside. When you touch it, the dust pops out. This helps it grow more. Can you find one in the woods?

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Puffin

Puffins are small birds. They live by the sea. They have big, bright beaks. These birds dive for fish. They can carry many fish at once. This helps feed their babies. Do you like birds?

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Pulmonary alveolus

Your lungs have tiny air sacs. They are shaped like little cups. These sacs help you breathe. They take in good air. They also let out old air. This helps your body stay well. Can you take a deep breath?

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Pumpkinseed

The pumpkinseed is a small fish. It lives in warm lakes. It has bright colors. It has a red spot near its ear. This fish is very pretty. Do you like bright colors?

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Pupfish

Pupfish are small fish. They live in many places. Some live in very hot water. This helps them stay safe. They eat plants and bugs. Do you like to swim?

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Pupil

The black dot in your eye is a hole. It lets light in. When it is bright, the dot gets small. When it is dark, the dot gets big. This helps you see well. Can you see your dot in a mirror?

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Puppy

A puppy is a young dog. They are very small at first. They stay close to their moms. They grow very fast. Soon they can walk and play. Do you like puppies?

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Purebred

Some animals look just like their parents. They come from the same kind of family. We can keep track of their family tree. This helps us know what they will look like. Do you have a pet with a special family?

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Purkinje effect

Colors change when it gets dark. Bright red flowers look dark at dusk. They may even look black. But blue colors look bright. This helps us see in the dim light. It is a neat trick of our eyes. Do you see colors…

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Pye-dog

These are special dogs. They live near people in India. They have been around for a long time. These dogs are very strong. They help keep us company. Do you like dogs?

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Pygmy hippopotamus

The pygmy hippo is a small animal. It lives in the forest. It likes to swim in the water. It eats plants and fruit. This animal is very special. Do you like hippos?

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Pygmy marmoset

The pygmy marmoset is a tiny monkey. It is the smallest monkey in the world. It lives in a big, green forest. These monkeys like to eat tree gum. It is fun to see them! Can you find them in the trees?

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Pygmy sperm whale

A pygmy sperm whale is a small whale. It lives in the big ocean. It looks a bit like a dolphin. This whale can spray red ink to hide. It helps the whale stay safe. Do you like whales?

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Pyrrhocoris apterus

The firebug is a small bug. It is bright red and black. You can find them in groups. They like to eat seeds. They stay in the sun. Do you see any red bugs?

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Pyrus × bretschneideri

This is a special kind of pear. It grows in North China. The fruit is very juicy. It is white and crisp. You can eat it for a snack. It tastes good to us. Do you like to eat pears?

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Pyrus pyrifolia

This tree grows sweet fruit. The fruit is a pear. It is very juicy. It can be yellow or green. Many people like to eat it. Do you like pears?

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Python (genus)

Pythons are big snakes. They live in warm places. Some have spots on their skin. Many people keep them as pets. They can be very colorful. Do you like snakes?

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Pythonidae

Pythons are big snakes. They live in warm places. They lay eggs in nests. The mothers keep the eggs warm. They use their strong bodies to catch food. Do you like snakes?

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Quadrupedalism

Some animals walk on four legs. A zebra uses all four legs to move. Some bugs do this too. Even small babies crawl on all fours. It is a fun way to go. Do you like to crawl?

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Quagga

The quagga was a special animal. It looked like a zebra. It had stripes on its head. Its back looked like a brown horse. Now these animals are gone. We can still see their pictures. Do you like zebras?

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Quantitative genetics

We look at how things grow. Some things change a little. Height can be tall or short. We study these changes. It helps us learn. Do you want to see how?

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Quarantine

People stay in one place to stay safe. This helps stop germs from spreading. It can be for people or even animals. This helps keep everyone healthy. It is a smart way to help. Do you know why we do this?

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