Jellyfish | Global Warming | Ocean health

Of all the oceans' predators, jellyfish have the least … of everything: With no teeth, fins or brains, they catch only whatever unlucky animals drift into their path.

But to the animals they hunt, jellyfish and the many related species of comb jellies are a menace. Ranging from several feet long to nearly microscopic, their venom often kill creatures hundreds of times their size, including, in rare cases, humans.

via Jellyfish | Global Warming | Ocean health.

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