GMAT
Some bat caves,like honeybee hives, have residents that take on different duties such as defending the entrance, to act as sentinels and to sound a warning at the approach of danger, and scouting outside the cave for new food and roosting sites.
Some bat caves,like honeybee hives, have residents that take on different duties such as defending the entrance, acting as sentinels and sounding a warning at the approach of danger, and scouting outside the cave for new food and roosting sites.
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