Rachel Carson National Wildlife Refuge - Bats belong to the taxonomic Order Chiroptera, which means "hand-wing". This is because a bat's wing is really its hand. The bones running through the wing
![Mammoth Cave NP on Twitter: "It's Bat Week!! Did you know that bats are the only flying mammal? A bat's wing resembles a modified human hand. The flexible skin membrane that extends Mammoth Cave NP on Twitter: "It's Bat Week!! Did you know that bats are the only flying mammal? A bat's wing resembles a modified human hand. The flexible skin membrane that extends](https://pbs.twimg.com/media/FCoRcn6XMBQP1pB.jpg)
Mammoth Cave NP on Twitter: "It's Bat Week!! Did you know that bats are the only flying mammal? A bat's wing resembles a modified human hand. The flexible skin membrane that extends
![CSIRO on Twitter: "#4oclockfact Bats have four fingers and a thumb, with a membrane grown in between. ^RV https://t.co/3egTyX5cKb" / Twitter CSIRO on Twitter: "#4oclockfact Bats have four fingers and a thumb, with a membrane grown in between. ^RV https://t.co/3egTyX5cKb" / Twitter](https://pbs.twimg.com/media/DWbyGumV4AE1t7h.jpg)