More than a decade ago, Juli Berwald left a carer in ocean science to raise a family in landlocked Austin Texas, but jellyfish drew her back to the sea. Yet until recently, jellyfish were largely ignored by science, and they remain among the most poorly understood of ocean dwellers. Made of roughly 95 percent water, some jellies are barely perceptible virtuosos of disguise, while others glow with a luminescence that has revolutionized biotechnology.
Their sting-microscopic spears that pierce with five million times the acceleration of gravity-is the fastest known motion in the animal kingdom. They make a venom so toxic it can kill a human in three minutes. Jellyfish have been swimming in our oceans for well over half a billion years, longer than any other animal that lives on the planet. A former ocean scientist goes in pursuit of the slippery story of jellyfish, rediscovering her passion for marine science and the sea's imperilled ecosystems.
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