Episode 479 - Fish that count and Spiders hearing with their webs
Can fish count? What purpose does a stingray have with addition and subtraction? Why are fish and stingrays able to do basic arithmetic without a cerebral cortex? Scientists taught fish to do arithmetic with some help from Bees. What happens with you put a spider web in an anechoic chamber? How do spiders tune their webs to detect sound? Spiders webs act as powerful microphone arrays that are also cable of carrying sound across long distances. Spider webs make powerful microphone arrays that allow spiders to hear great with great fidelity.
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