Transcript Lesson Powerpoint

Birds vs. Bats
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• Birds
Bats are mammals.
Are...well...birds!
They have fur or hair. • They are hatched from
eggs.
A baby bat is born
live.
• Birds have feathers,
not fur or hair.
The babies nurse from
their mom.
• Babies are fed from
mom's mouth.
Bats have arms, hands
and feet.
• They have wings, but
no hands and fingers.
They are warm
blooded.
Where do bats live?
• They live on all continents except
Antarctica.
• You can find more bats where the weather
is nice and warm.
• In the United States, bats live in the
southwestern part of the country.
• Texas has 32 different kinds of bats while
Maine has only 8; and Arizona has 28
species, but Michigan has just 10.
What kind of food do bats eat?
• Fruit-eating bats prefer ripe fruit.
• Bats that like to eat nectar pick up pollen.
• Meat-eating bats use vision,
echolocation and sounds from their prey to
help locate their food.
• Fishing bats grab little fish out of the water with
their claws. Echolocation is used to find this food.
• Most vampire bats drink the blood of birds.
• 70 Percent of bats eat insects.
How bats help us humans
• Some bats help control the insect
population.
• Certain Bats are helpful to farmers.
• Many bats spread seeds for new plants and
trees.
• The Vampire bat might help scientists.
How birds locate their food
ECHOLOCATION
• Bats send out sound waves using their mouth or
nose.
• When the sound hits an object an echo comes
back.
• The bat can identify an object by the sound of the
echo.
• They can even tell the size, shape and texture of a
tiny insect from its echo .
• Most bats use echolocation to navigate in the
dark and find food.
NOW LET’S GO OVER WHAT
WE’VE LEARVED…
• How are birds and bats similar and how are
they different?
– Bats are mammals like us
– Birds are hatched from eggs
• Where do bats live?
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Every continent except Antarctica
Warm areas
Southwestern part of the United States
Texas has 32 kinds of bats
NOW LET’S GO OVER WHAT
WE’VE LEARVED…
• What do the different types of bats eat?
– Fruit, meat, blood, nectar, insects, fish
• Bats help humans how?
– Eating insects
– Dropping seeds and helping plant flowers and trees
– Researchers in Science
NOW LET’S GO OVER WHAT
WE’VE LEARVED…
• How do bats find their food?
– Echolocation
• What is echolocation?
– When bats use vibrations from objects to find food
and their way around
NEW VOCABULARY FOR THE
UNIT:
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Echolocation
Rain forest
Continent
Vampire
Region
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Mammal
Nectar
Cave
Equator
Tropical