For Disguise, Female Squid Turn On Fake Testes

Did you know this week is International Cephalopod Awareness Days? I’ll assume your gifts are in the mail. Today is dedicated to squid, and you can’t have total cephalopod awareness without discussing fake squid testes. This post was first published in September 2013.

The best way to stay out of trouble, if you’re a shimmery, color-changing little squid, might be to paint on some pretend testes. Scientists have found that certain female squid can switch on and off a body pattern that make

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