Animals
This spider uses trapped fireflies to lure in more prey
Male fireflies trapped in the spider’s web flash femalelike lights, possibly luring in other flying males and allowing the arachnid to stock up on food.
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A risk-tolerant immune system may enable house sparrows’ wanderlust
Birds that are willing to eat seed spiked with chicken poop have higher expression levels of a gut immunity gene, a new study finds.
