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The orientation of the hindlimb is also unique to bats. The hip joint is rotated 90° so that the legs project sideways and the knee faces almost backwards. Due in part to the rotation of the hindlimb, the walking motion of bats differs from other tetrapods, often appearing awkward. The hindlimb is designed to support the patagium in flight and allow the bat to roost hanging from its hindlimbs. Most bats have a tendon system in the toes that locks the claws in place so the bat can hang upside down even when asleep.

The body of a bat is ventrally compressed with a short neck region. The bones tend to be slender and light-weight. The majority of the body weight is concentrated in the chest region due to the large flight muscles.

The overall shape of the head varies more in bats than within most other groups of mammals. Some bats have very elongated muzzles while others have broad, short faces. There is a correlation between the shape of the head and the type of food eaten. For example, most nectar feeders have long, narrow muzzles that are good for reaching into flowers, while many fruit eaters have short, broad faces good for biting rounded fruits (Hill and Smith, 1984).

The ears range from small and round to large and pointed, and often have a cartilaginous fold (tragus) present at the notch of the ear. There is additional variation in the nasal and lip regions of bats. Some bats have complex noseleafs, folds, or wrinkles on their muzzles.

A major misconception about bats is that they are blind. This idea originated from the fact that bats are able to successfully maneuver in the dark and often have small eyes. While some bats do have very small eyes (most Microchiroptera) many have large and complex eyes (Megachiroptera).

Bats usually have black or brown fur, although the fur can also be gray, white, red, or orange. In some species there are stripes on the face or down the back, or patches of white on the face or above the shoulder. The length of the fur also varies among species from short and dense to long and fluffy. The wing membrane is usually dark in color, although it may have white on the tips or be a lighter color around the bones in the membrane. A few bats have white or pale yellow wings. There are also little hairs on the membrane itself. These hairs can be the color of the wing or the same color as the body.

The bat monophyly hypothesis states the Megachiroptera and Microchiroptera are each others closest relatives in an evolutionary sense (i.e., they form a clade).

Depending on the species, bats can be gray, brown, white or reddish brown.

Bats have teeth and chew their food. Seventy percent of all bats eat insects. One bat can eat more than a thousand insects in one hour!

The largest bats have a wingspan of more than six feet. However, most are smaller.

Many people do not like bats and are afraid of them because they think all bats have rabies. Rabies is a virus that is transmitted to animals and people through animal bites. A study by the University of Florida has shown less than one-half of 1 percent of all bats have rabies. It is more likely for a person to be bitten by an unvaccinated dog or cat.

People also think vampire bats will try to attack humans. That is simply not true.

Bats are not a danger to people and are actually quite valuable. Very few carry rabies, and they help to control the insect population. They also help seed new plants and pollinate our crops!

the upper parts dark brown, the wings spotted gray-blue. A white band separates the head from the body. There is a dark stripe through the eye, and the under parts are white. The strong bill is black.

Kookaburras inhabit woodland areas of eastern and south western Australia.

The Kookaburra seizes snakes behind the head and kills them by dropping them from a height, or else carries them to a perch and batters them senseless with its big bill before swallowing them.

The Australian aborigines have a legend about the Kookaburra. When the sun rose for the first time, the god Bayame ordered the kookaburra to utter its loud, almost human laughter in order to wake up mankind so that they should not miss the wonderful sunrise. The aborigines also believed that any child who insulted a kookaburra would grow an extra slanting tooth.