When Critters Bleed ... On Purpose!

Some insects and reptiles have a strange self-preservation characteristic — they suddenly start bleeding from places like their eyes or knees. NPR science correspondent Nell Greenfieldboyce looks at "reflex bleeding" and explores some of the creatures that bleed on purpose. For more science reporting and stories, follow Nell on twitter @nell_sci_NPR. And, as always, email us at [email protected]. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences.NPR Privacy Policy

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