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Chiroptera: The order of mammals that includes all bats. This Latin word means "hand-wing".

Frequency: The number of periodic oscillations, vibrations, or waves per unit of time. It is usually expressed in hertz.

Frugivorous: Animals that eat fruit.

Guano: Bat droppings or excrement.

Insectivorous: Animals that eat insects.

Nectarivorous: Animals that eat nectar or pollen.

Piscivorous: Animals that eat fish.

Pre-volant: Before the ability to fly.

Uropatagium: Often referred to as the interfemoral or tail membrane, it is the membrane that stretches between a bat's legs and tail.

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