How does a polar bear keep warm? - MrDoucette

Lesson #3B - Adaptations
• Adaptations –
Definition
• Adaptations – an organism structures,
skills, and abilities that enable it to
survive in its environment.
Why are adaptations
important?
Why are adaptations
important?
- Animals depend on their physical
features to help them obtain food, keep
safe, build homes, and withstand
weather.
Why are adaptations
important?
- Animals depend on their physical
features to help them obtain food, keep
safe, build homes, and withstand
weather.
- These adaptations make it possible
for the animal to live in a particular
place and in a particular way.
Why are adaptations
important?
- Animals depend on their physical
features to help them obtain food, keep
safe, build homes, and withstand
weather.
- These adaptations make it possible
for the animal to live in a particular
place and in a particular way.
- Each adaptation has been produced
by “evolution”. Which means that they
have developed over many
generations.
DESERT FOX
ARCTIC FOX
THE ARCTIC
The Polar Bear
Why are polar bears white?
It helps them blend in with the
snow and ice.
How does a polar bear keep warm?
It has a layer of fat under it’s skin that
helps it stay warm.
Why does a polar bear have large, wide paws?
They help a polar bear walk in the snow.
Why does a polar bear have nostrils which it can close?
So that when it swims under water, no water can get in.
Penguins
How are penguins adapted to swim fast?
They have webbed feet and their
bodies are streamlined to reduce
drag in the water.
How do penguins keep warm?
They have thick skin and lots
of fat to help keep them warm.
They also huddle together with their friends to keep warm.
THE DESERT
The Camel
- Long eyelashes keep the sand out of it’s
eyes.
- It’s big eyebrows shield the eyes from the
desert sun.
- It’s nostrils close so no sand can get in.
-
It can go a week or more without water, and can drink
up to 46 litres in one session.
They store fat (not water) in their humps for energy.
Camels feet are wide so they can walk on the sand more
easily.
Camels ears are covered with hair so that the sand or
dust doesn’t blow into the animals ears.