A Blog Around The Clock

Excited by milky substances?

There are many organisms that one can extract milky substances from, but cactus is NOT one of those. Which is a simple and useful way to figure out if the needly thing in front of you is a cactus or something else….


  1. #1 Larry Ayers
    April 6, 2008

    I got a kick out of that post as well. It’s always good to be reminded of examples of convergent evolution!

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