Animals have different senses. They can see, hear, taste, smell and feel.
Ants have antennae which they use to smell, touch, feel and communicate with other ants. With the help of these special senses the ants come to know about other ants that are part of its group.
Mosquitoes can find us by the:
Some male insects can recognize their females by their smell. For example, silkworm.
Dogs mark out their own area on the road. They can make out if another dog has come into their area by the smell of its urine or potty (latrine).
This special sense of smell of dogs is used by humans in the following ways:
Note: Is a smell ‘good’ or ‘bad’ for everyone in the same way?
It depends on how a person feels or thinks about a particular smell.
EYES OF BIRDS
Most of the birds have their eyes on either side of the head. Their eyes can focus on two different things at a time. When they look straight ahead, both their eyes focus on the same object.
Birds like sparrow, crow, pigeon, eagle, etc. have eyes on either side of the head. The size of their eyes is much smaller than that of their head.
In most of the birds, eyes are fixed and cannot move. So birds have to turn their heads to see around.
An owl has eyes in front of its head (like in humans).
Some birds like kites, eagles, vultures can see four times as far as we can. That is, these birds can see things from a distance of eight metres what we can see from a distance of two metres.
An eagle in the sky can see a roti on the ground from a distance of one and a half to two kilometres.
Animals cannot see as many colors as we can. It is believed that animals that are awake in the daytime can see some colors. Those animals that are awake at night can see things only in black and white colors.
We cannot easily see birds’ ears. Their ears are small holes covered with feathers.
Large sized ears of animals can collect more sound waves which make their hearing power stronger than ours.
Note: Some pet animals like dogs, cats and parrots can be trained to understand our language.
Some animals go into a long, deep sleep in certain seasons. Then they are not seen for many months. For example, lizards are not seen during the cold season. They stay awake almost during the entire day in winters.
Sloth It looks like a bear but is not. It spends almost 17 hours a day sleeping while hanging upside down on a tree branch. The sloth eats the leaves of the same tree on which it lives. When it has eaten enough leaves from that tree, it moves to the nearby tree.
Sloths live for about 40 years and in that time they move around only eight trees. Once a week it comes down from the tree to relieve itself.
SLEEPING TIME OF DIFFERENT ANIMALS
No. of shaded sectors = 2
So, sleeping time of cow
No. of shaded sectors = 9
So, sleeping time of python
No. of shaded sectors = 1
So, sleeping time of giraffe
No. of shaded sectors = 6
So, sleeping time of cat
The tiger is one of the most alert animals.
ANIMALS IN DANGER
People who kill animals are called Hunters and Poachers.
The number of tigers and many other animals in our country is reducing. There is a danger that some of them will soon disappear. To protect the animals, our government has made some forests as Protected Areas. Examples, Jim Corbett National Park in Uttrakhand and ‘Ghana’ in Bharatpur district of Rajasthan. In these areas nobody can hunt animals or destroy the jungle.