Bats
True flight has not been achieved in any mammal except in bats. Flight in bats is similar to that of any other species; in that they all use the same basic aerodynamic principles. All of the vertebrates that have achieved powered flight use the fore limbs for the power, however some have but added modifications such as feathered wings for birds. The structure of the wings of bats are also very different compared to birds for example the arrangement and length of certain bones, however the bones themselves are the same.
In order for bats to achieve flight, they must overcome gravity in two ways. The Desmodus rotundus lives in caves of Mexico and Central and South America. During the day the bats are suspended at the top of the cave, this is because bats cannot take flight from the ground, as the structure of their wings will not allow it. Another reason as to why bats suspend themselves in dark caves is to avoid predation, which mostly occurs during the day.
In order for bats to achieve flight, they must overcome gravity in two ways. The Desmodus rotundus lives in caves of Mexico and Central and South America. During the day the bats are suspended at the top of the cave, this is because bats cannot take flight from the ground, as the structure of their wings will not allow it. Another reason as to why bats suspend themselves in dark caves is to avoid predation, which mostly occurs during the day.