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Apr 04 2012

Botanical Wednesday: Cacti aren’t astronomers, silly!

(via NatGeo)

(Also on Sb)

12 comments

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  1. 1
    'Tis Himself

    Cacti aren’t astronomers

    Your evidence for this claim is what?

  2. 2
    A. R

    You’d better not let Mr. Frothy see this, he might declare it to be teh pr0nz.

  3. 3
    jasonnishiyama

    But do you think astronomers are prickly?

  4. 4
    chrispollard

    No but the rib spacing on the cacti surface has evolved to minimize air drag so they don’t get blown over so easily.

  5. 5
    Markita Lynda—threadrupt

    Very pretty!

  6. 6
    Ms. Daisy Cutter, General Manager for the Cleveland Steamers

    Ribbed… for your lack of pleasure!

  7. 7
    Worldtraveller

    *sigh* I miss Az. As a fan of both the desert, and astronomy, I heartily approve this image.

  8. 8
    paulburnett

    chrispollard (#4) wrote: “No but the rib spacing on the cacti surface has evolved to minimize air drag so they don’t get blown over so easily.

    The “ribs” are actually expansion pleats so the cactus can swell up when it’s wet, and then shrink when it’s dry. (The big cetaceans have expansion pleats in their chins, for their lunge-feeding “big gulp.”)

  9. 9
    cyberCMDR

    Reading this blog sensitizes you to a lot of the creationist arguments, or at least to what they use for logic. The casual association within the picture makes me think of their inference process.

    Cacti point at the heavens. Therefore, they are astronomers.

    X happened. Therefore God.

    Same process, just as useful.

  10. 10
    Sili

    Enough with this fake Latin!

    It’s cactodes! Get it right, you Philistines!

  11. 11
    Markita Lynda—threadrupt

    A rope wrapped in a spiral around a larger cable or a “spiral staircase” around a chimney also reduces drag.

  12. 12
    Markita Lynda—threadrupt

    …by reducing air turbulence.

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