Monday, 17 July 2017

Sea spiders move oxygen with pumping guts (not hearts)

Date:  July 10, 2017
Source:  Cell Press

Summary:  To keep blood and oxygen flowing throughout their bodies, most animals depend on a beating heart. But researchers have discovered that sea spiders use a strange alternative: they move blood and oxygen throughout most of their bodies by pumping their guts. The sea spiders have an unusual gut in the first place, the researchers say.

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