Scientists recently discovered a new member of Tripedaliidae (a family of box jellyfish) living in brackish ponds near Hong Kong. Only 1.5 centimeters in length on average, these new jellyfish have 24 ...

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In the open ocean in the dead of night, a light-studded downline silently sinks a hundred feet into the water’s inky depths. The National Geographic Society, committed to illuminating and protecting ...