Bats - PowerPoint - PowerPoint

							Bats
                           Bats
• Bats are the only flying mammals.
                           Bats
• They give birth to live young and nourish them with milk.
• Bats are nocturnal; they are most active at night and sleep
  during the day, hanging upside-down.
                           Bats
• Bats are found in all types of habitats all around the world
  except at the poles.
• There are over 900 species of bat.
• During the winter, some bats will migrate to warmer areas.
• Some bats, like the brown bat, hibernate during the cold
  weather.
                             Bats
•   Bat’s wings are long fingers covered by thin skin.
•   They have furry bodies.
•   Some bats have short tails, others have no tail.
•   Bats have weak legs and do not walk very well.
                            Bats
• The smallest bat is the bumblebee bat, with a wingspan of 6
  inches and weighing less than a penny.
• The biggest bat is the flying fox bat, with a wingspan of 6 feet
  and weighing about 2 pounds.
                           Bats
• Bats can see, but do not use this as their primary sense.
                            Bats
• There are 2 types of bats that differ in their diet and in the
  way they sense and obtain food.

• Microchiropterans—these bats use echolocation to find
  insects and small animals to eat.
• While flying, these bats send out high-pitched sounds that
  bounce off other objects.
• The bat listens for the bounced sound and can determine
  where objects are located.
• People can not hear these high-pitched sounds.
• Some microchiropterans include the vampire bat and the
  frog-eating bat.
                            Bats
• The vampire bat is the only bat and the only mammal that eats
  blood.
• It makes a small hole with its 2 sharp incisor teeth and laps up
  the blood, which does not clot because of anticoagulants in
  the bat’s saliva.
                         Bats
• Megachiropterans—these large bats use the sense of smell to
  find their food, fruit, and/or nectar.
• Some megachiropterans include the fruit bat and the blossom
  bat.
                 Vampire Bats
• These bats sleep during the day in total darkness.
• They hang upside down from the roofs of caves.
• They typically gather in colonies of about 100 bats, but
  sometimes in groups of 1000 or more.
• In one year, a 100-bat colony can drink the blood of 25 cows.
                 Vampire Bats
• During the darkest part of the night, common vampire bats
  come out to hunt.
• Sleeping cattle and horses are their usual victims.
• They have been known to feed on people as well.
• Bats drink their victim’s blood for about 30 minutes.
• They don’t remove enough blood to harm their host, but their
  bites can cause bad infection and disease.
                 Vampire Bats
• Vampire bats strike their victims from the ground.
• They land near their prey and approach it on all fours.
• Bats have few teeth because of their liquid diet, but the
  teeth they do have are razor-sharp.
• Each bat has a heat sensor on its nose that points it towards
  a spot where warm blood is flowing just beneath the victim’s
  skin.
• After putting a bite on an animal, the vampire bat laps up the
  flowing blood with its tongue.
                  Vampire Bats
•   Young vampire bats feed not on blood but on milk.
•   They cling tightly to their mothers, even during flight.
•   They will eat nothing but milk for about 3 months.
•   The common vampire bat is found in the tropics of Mexico,
    Central America, and South America.
 Vampire Bat Scientific Names
• Desmodus rotundus (Common
  Vampire Bat)
Vampire Bats Scientific Names
• Diphylla ecaudata (Hairy-legged
  Vampire Bat)
 Vampire Bats Scientific Name
• Diaemus youngi (White-winged
  Vampire Bat)
                 Final Point!!!
• On a separate sheet of paper, BE THE BAT!! Write a
  paragraph as if you were the bat in this picture.