By JERUSALEM POST STAFF, Published:
JULY 18, 2022
Egyptian fruit bats were the subject of a study by Tel Aviv University researchers.
(photo credit: YUVAL BARKAI/TEL AVIV UNIVERSITY)
Bats
have an ability to learn and retain information that is crucial to
their way of life, Panama-based Smithsonian Tropical Research
Institution (STRI) researchers discovered in a new report.
The study, published in the Current Biology scientific journal this month, sought to test whether frog-eating bats can remember a sound, years after they were taught it.
The
research team, led by biologist May Dixon, trained 49 wild bats to
respond to soundbites played through speakers, which had rewards placed
on top of them to incentivize the bats to continue responding to the
ringtones.
The STRI team found that the bats learned quite quickly to fly to the speaker when they hear the ringtones, while not responding when other sounds, which did not reward them with snacks.
Eight
of the trained bats, who were microchipped and released back to the
wild, were recaptured between one to four years later with the aim of
testing whether they can recollect the association they have made
between the ringtone and food.
Fringe-lipped bat (Trachops cirrhosus). Photo taken in La Selva, Costa Rica (credit: Wikimedia Commons)
More results
The experiment was successful, as the bats
recognized two of the sounds they were trained to respond to, the ping
of an incoming SMS and the beep of a car being unlocked.
17
untrained bats, who were also included in the experiment, seemed
interested in the sound but did not fly toward it, the study found.
According to STRI, The frog-eating bats’ newfound long-term memory
helps them to hunt by learning and remembering which frog calls
indicate that a frog is good to eat, poisonous, or too big to carry.
"It’s possible that they remember the extinguished sound, but enough
time had gone by that they thought to check it out once more," said PhD
student and study co-author Patricia Jones.
"Or
it’s possible that they couldn’t remember the exact difference between
the ringtones, and that extinguished sound was close enough to the
rewarded one that they decided to check that out too," Jones explained.
"Sort of like a generalization of memory."
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