Weird worms challenge complexity argument

Chaetognaths, whose name means "bristle-jaw," can be found all over world, swimming in brackish estuaries, tropical seas and above the deep dark ocean floor. Also known as arrow worms, the creatures have been around since the Cambrian Period, but their precise place in evolutionary history has long eluded scientists. Now, researchers at the Okinawa Institute of Science and Technology Graduate University (OIST) have learned where arrow worms wiggle on the Tree of Life, and their results could reveal important trends in the evolution of bilateral organisms.

Weird worms challenge complexity argument

New classification throws light on the evolution of simplification. Nick Carne reports.

Thu 10 Jan 19 from Cosmos Magazine

Bizarre 'bristle-jaw' creatures finally placed on tree of life

Chaetognaths, whose name means "bristle-jaw," can be found all over world, swimming in brackish estuaries, tropical seas and above the deep dark ocean floor. Also known as arrow worms, the creatures ...

Thu 10 Jan 19 from Phys.org

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