Almost 70% of all the bat species in the world feed only on insects. A single bat can eat up to 1,200 mosquito-sized insects every hour, resulting in a nightly intake of 6,000 to 8,000 insects.

The Giant Golden-Crowned Flying-Fox Bat is a rare species, and one that features very long wings. In fact, they are so long that it is often seen with them wrapped around the body like a cloak. When fully displayed, the wings can be up to five feet wide.

The scientific name for bats, Chiroptera, is from the Greek cheir=hand + pteron=wing, or "hand wing".

When not flying, bats hang upside down from their feet, a posture known as roosting.

Vampire bats are known to detect infrared radiation from their prey using specialized 'pit organs' located around their noses.

The upper incisors lack enamel, which keeps them permanently razor sharp.

Pallid bats that live in the western United States have very large wings which allow them to hover and catch their food on the ground. They appear to be immune to scorpion stings and up to 70% of a pallid bat's diet can be scorpions at certain times of the year. Otonycteris hemprichii, long-eared bats living in some of Israel's harshest deserts, also eat scorpions.

Club-footed Bats, or Bamboo Bats, roost by day inside the stems (or 'culms') of various bamboo species. Bamboo Bats have a flattened skull, which allows them to squeeze through a narrow space and gain access to their roosting places, which also include crevices in rocks and trees. They are able to squeeze through slits as narrow as 4-8 mm.

Bats contract rabies far less than other animals. Only 0.5% of bats carry rabies, and those that do may be clumsy, disoriented, and unable to fly.

Some moths, beetles and crickets can hear ultrasonic sounds. When moths hear an echolocating bat, some will turn and fly away. Others will start flying in a zigzag, spiral, or looping pattern to avoid being eaten. Some crickets and beetles are known to make clicking sounds that startle the bat and scare it off.