NCERT Solutions for Class 3 EVS Chapter 1 Poonam Day Out

Aerial animals are those which spent a greater part of their lives in the air. Flying is the main characteristic of this group. Most of the aerial animals revolve around their flying. Most of the birds and bats belong to this group.

Most monkeys live on trees, but there are some of them live on land or mountain areas. Monkey tribes stay on the move to find food, so one location isn’t home for very long.

Animals are living things. Like plants, animals need food and water to live. Unlike plants, which make their own food, animals feed themselves by eating plants or other animals. Animals can also sense what goes on around them and they can also move from one place to another. Their bodies allow them to move in reaction to their surroundings. They use their senses and movement to find food, mates, and safety.

There are different types of movement in different animals. There are some animals which walk and run, for example- dog, cat, lion etc. There are some animals which crawl like: Snakes, lizards, snails etc. Some animals can fly and some can swim. They have different body parts which they use for their movements.

On the basis of their eating habits, animals are classified into different categories. Herbivores is that category of animals which eats plants and plant products, for example- cow, goat, camel, deer etc. These animals eat grass, tree bark, aquatic vegetation, and shrubby growth.

Animals also move from one place to another like human beings as they also need food, water, shelter and protection from their enemies. They use different body organs to move from one place to another.

Lion, Tiger and wolf are called carnivores according to their eating habit as they are the animals that eat the flesh of other animals. They get their energy by eating the flesh or meat of other animals.

Omnivores are the organisms which consume both plants and animals. Human beings are the ones who eat plants in the form of different vegetables. They also eat the flesh of animals and fish products. Hence, humans are said to be omnivorous.

Animals that stay with human beings are called as Pet animals. They live with the humans in their house and are a companion animal that human take care of and that keeps their company, like a dog or a cat.

Animals that are useful to human beings and are domesticated by them for the things they get from them are called domestic animals. For example, cow, goat, buffalo and camels are domesticated for milk and milk products like curd, cheese, butter and ghee. Animals such as hens and ducks give us eggs and meat. We get meat from animals like sheep, goat, fish and hen which are rich in protein. Honeybees provide us with honey.

Mammals are the animals that give birth to young ones directly. The young ones feed on their mother’s milk. They grow inside their mother’s body where they get complete protection. Parents look after them till they grow and are able to feed themselves. Whales, Dolphins and Bats are mammals too, so they also give birth to babies. Other examples are Lion, deer, cow, dog, human being etc.

Amphibians are a class of animals like reptiles, mammals, and birds. They live the first part of their lives in the water and the last part on the land. When they hatch from their eggs, amphibians have gills so they can breathe in the water. They also have fins to help them swim, just like fish. They are small vertebrates that need water, or a moist environment, to survive. The species in this group include frogs, toads, salamanders. All can breathe and absorb water through their very thin skin.

Birds are the animals that have feathers. They can fly as they have a pair of wings which are attached to the breastbone which is a thin, flat bone running down the centre of the chest. They have powerful muscles, a streamlined body shaped like an aero- plane, light hollow bones and feathers that help the birds in flying.

Pests are those insects or small animals which are harmful to us. They are unwanted visitors which usually hide themselves during the day and are visible mostly at night. They come out of their hiding places in search of food and carry the germs of many diseases as they hide in dirty places. For example- cockroaches, rats, lizards etc.

Animals cannot speak like us and thus they use sound to warn others to stay out of its territory and also to attract a mate. They make different sounds like braying, growling, squawking, squealing, cooing, and rattling. They use these different calls to identify themselves and communicate with other birds.

The main reason for the spiders to spin webs is to catch their prey for the dinner. When an insect, such as a fly, flies into a spider’s web, it gets stuck on the sticky threads. When a spider catches prey in the sticky strands of its web, it reaches the trapped insect and uses its fangs to inject venom or poison in it.

Since snakes don’t have legs they use their muscles and their scales to do the “walking”. Snakes push off of any bump or other surface, rocks, trees, etc. They move in a wavy motion, basically crawl or slither with the help of their body muscles.

Some animals live underground due to various reasons such as to protect themselves and their young ones from predators, survive extreme temperatures, reproduction, hibernation and food supply.

Animals wag their tail for different reasons like to convey a range of their emotions such as happiness, nervousness, threat, anxiety, submission and excitement. Many land animals use their tails to brush away flies, dust and other biting insects. Cats and kangaroos, use their tails for balance and some monkeys have tails which allow them to grasp tree branches.

Animals that live on land either on the surface of the ground or in burrows below the surface of the ground are known as terrestrial animals. Snakes, rabbits, mice and foxes live in burrows. Dog, cats, tiger, lion, elephant, camel, horses etc live on open land.

Some animals do not reproduce young ones but lay eggs which contain their immature babies. When the babies are fully grown, they mature inside the eggs and they break the shell and come out of it. Birds, insects, fish, frog, snakes and crocodiles are examples of such animals.

Elephants are the largest land animals on Earth, and they’re one of the most unique-looking animals, too. With their features that is long nose or trunks, large, floppy ears, and wide, thick legs, there is no other animal with a similar body.

Bats fly by rowing through the air. Their wings are like webbed hands which have muscles. Some of these muscles pull the wings up and some of these bring them down. Bats fold their wings while they are move their wings up. Bats are furry animals that can fly, making them very unique. They are the only mammals that can truly fly.

The structure of fish helps it in swimming, mainly fins and tails. Fish have a streamlined body shape, flexible backbone, fins and strong muscles which help them to swim in water. Their body shape lets the water flow easily around it allowing the fish to smoothly move in water. The front and tail move in the opposite directions which makes the fish move forward.

Spiders are commonly found on straight surfaces like tree trunks, fence posts, and even the walls of people’s homes. They wander into human dwellings, they are generally harmless and only try to bite when they are handled roughly.

Penguins have developed a streamlined body shape that reduces pull when they are in the water. This is a shape which has also been adopted by fish and marine mammals. Their wings called “flippers” are paddle like and feet are used for swimming. The movement of the flippers is just like the wing movements of flying birds which helps penguins to fly through water. The wing and breast muscles are well developed, to push penguins through water.

Bats sleep hanging upside down because they are mammals and can’t take off into the air like birds can. Bats are the mammals best known for their upside-down sleeping position. One reason for this is that it makes the bat less visible to their enemies.

Birds chirp to point out danger, warning and communication. Both male and female birds can chirp. It is also the signal of a male bird to look for for partner after occupying a territory. Birds make contact calls to keep in touch with each other while they’re looking for food.

Birds build nest so that they can lay and hatch eggs and take care of their young ones. Many species of birds build nests only for the primary function of laying eggs and raising their young birds. Each species has its own nesting habits, but many build nests high above the ground to separate their eggs and their babies from ground-level enemies.

Animals need shelter to protect themselves from strong nature and from their enemies. The animals need to save their lives from the natural calamities and hence they need a protective shelter.