Quirky https://refractor.io/tag/quirky/ Quirky en-AU Tue, 11 Jul 2017 09:32:03 GMT Weak-hearted sea spiders pump blood with their guts https://refractor.io/biology/weak-hearted-sea-spiders-pump-blood-with-their-guts/ Researchers have found that sea spiders circulate oxygen through their bodies not with their hearts, but with their guts instead

Sea spiders already look decidedly alien, like they're about to latch onto your face, but now scientists have found they're equally bizarre on the inside. With weak hearts, the crafty creatures instead use a sprawling system of guts to pump blood and oxygen throughout their bodies.

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]]> Tue, 11 Jul 2017 09:32:03 GMT https://refractor.io/biology/weak-hearted-sea-spiders-pump-blood-with-their-guts/ Michael Irving