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Evolution in Bats!

52.5 million years

ONYCHONYCTERIS FINNEYI

Modern Bats

Gap

  • Oldest bat known to date
  • Has claws on all five fingers
  • Knew how to fly
  • Most likely unable to echolocate *
  • Able to fly extremely well
  • Have the ability to echolocate
  • Have 2-3 claws on fingers

Bats

Megabats

Microbats

  • Feed on fruit or nectar
  • Mostly in Africa and Indo-Australia
  • Do not echolocatre
  • Mainly insectivorous
  • Widely distributed
  • Capable of echolocation
  • Nocturnal creatures
  • Can fly

Huge Gap

Resources

Icaronycteris Index

www.wikipedia.org

Modern

  • Second oldest bat known to date
  • Was probably able to fly
  • Had only one claw on second finger
  • Was probably able to echolocate

www.mapoflife.org

www.berkely.edu

thewildclassroom.org

www.batconservation.org

52.2 million years

Fossil Record

BATS

Where are bats?

WHAT ARE BATS?

Bats are extremely spread out mammals over the world! There are even bats here in Rhode Island! There 1,240 known species of bats, that can live for up to 20 YEARS!

Bats are the only MAMMALS who are capable of true flight. They are also nocturnal creatures whom are not as scary as in books.

ECHOLOCATION

Thanks for Watching

The generation of signals that bounce off surronding objects and the processing of the returning echoes allows them to determine the direction distance and features of these objects with extraordinary accuracy, it makes it easy for bats to navigate and hunt during the night.

Megabats don't echolocate because they tend to live in trees and shrubs were it is not as dark as in caves. They rely on their eyesight and sense of smell.

Microbats use echolocation to hunt small insects, it is easier to naviagate and find them this way. Bats can actaully see fairly well in dim lights but in pitch black it is diffucult. Some bats evolved to echolocate through their noses to better direct the sound rather than their mouths.

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