Clues found to jumbo squid 'suicides'

Thousands of jumbo squid have beached themselves on central California shores this week, committing mass "suicide." And despite decades of study into the phenomenon in which the squid essentially fling themselves onto shore, the cause of these mass beachings have been a mystery. But a few intriguing clues suggest poisonous algae that form red tides may be intoxicating the Humboldt squid and causing the disoriented animals to swim ashore.

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