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The diet of Livingstone's fruit bats consists of fruit, pollen, nectar, seeds, and leaves. [13] They have also been observed to hunt and eat moths in captivity. [14] They drive off intruders on their feeding territory with chattering sounds, clapping their wings, and chasing, sometimes culminating in clawing and biting.
In 2020, the big brown bat was designated the official state mammal of the District of Columbia. [4] In 2023, a successful campaign was launched to make the pallid bat the state bat of California. [5] The bill passed both houses unanimously and will take effect on January 1, 2024. [6]
Certain words in the English language represent animal sounds: the noises and vocalizations of particular animals, especially noises used by animals for communication. The words can be used as verbs or interjections in addition to nouns , and many of them are also specifically onomatopoeic .
Some bat detectors do not produce an accurate recording of a bat social call. Typically bat social calls use a lower frequency range than echolocation calls, and can thus be heard further away. Sometimes a bat will make a social call while echolocating which can cause confusion.
To avoid this type of jamming, bats typically wait enough time for echoes to return from all possible targets before making the next sound. This can be seen clearly when a bat attacks an insect. The bat produces sounds with progressively shorter time intervals, but always allowing enough time for sounds to travel to the target and back. [6]
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The hammer-headed bat is the largest bat in mainland Africa. [12] Males have wingspans up to 90.1 cm (2.96 ft), [ 13 ] and all individuals have forearm lengths exceeding 112 mm (4.4 in). [ 12 ] It has pronounced sexual dimorphism , more so than any other bat species in the world, [ 12 ] with males up to twice as heavy as females.
The sounds, which typically come from bottlenose or spotted dolphins, are not unusual. But this time, divers noticed that the sounds became more intense and were mixed with unique “clicking ...