Climate and Adaptations of Animals to Climate
Q41. How do polar bears survive the cold?
Polar bears have following adaptations which help them to survive in cold
Polar bears have white fur so that they are
not easily visible in the snowy white background. It protects them from their
predators. It also helps them in catching their prey.
To protect them from extreme cold, they
have two thick layers of fur. They also have a layer of fat under their skin.
Physical activities on warm days necessitate
cooling. So, the polar bear goes for swimming.
Its paws are wide and large, which help it
not only to swim well but also walk with ease in the snow. It can remain under
water for long durations.
It has a strong sense of smell so that it
can catch its prey for food.
Q42. What are the main features of the tropical rainforest?
features of the rainforest
The tropical region has generally a hot
climate because of its location around the equator. Even in the coldest month
the temperature is generally higher than about 15°C.
During hot summers, the temperature may
cross 40°C. Days and nights are almost equal in length throughout the year.
These regions get plenty of rainfall.
Tropical rainforests are found in Western
Ghats and Assam in India, Southeast Asia, Central America and Central Africa.
The major types of animals living in the
rainforests are monkeys, apes, gorillas, tigers, elephants, leopards, lizards,
snakes, birds and insects.
Q43. How animals have adapted themselves to overcome the
competition for food and shelter in the rainforests?
climatic conditions in rainforests are highly suitable for supporting an enormous
number and a variety of animals. Since the numbers are large, there is intense
competition for food and shelter. So, animals have adapted themselves to
overcome the competition for food and shelter in the rainforests.
Many animals are adapted to living on the
trees. Red-eyed frog has developed sticky pads on its feet to help it climb
trees on which it lives.
To help them live on the trees, monkeys
have long tails for grasping branches. Their hands and feet are
such that they can easily hold on to the branches.
Bird Toucan possesses a long, large beak.
This helps a toucan to reach the fruits on branches which are otherwise too
weak to support its weight.