Category: Biology

  • Motion Camouflage

    Motion Camouflage

    I read an article by Mizutani et al. (2003) about how dragonflies can move while appearing to be stationary against their background. I’ve been thinking this over and wanted to see if I could simulate this to illustrate it and better understand it. Usually, we think of animals minimizing motion to blend into their background.…

  • Strawberries

    Strawberries

    Another plant that might be planted in the fall, in addition to garlic, that comes to mind are strawberries. Honestly, I have a bit of an aversion to growing strawberries. We had them in our garden for a while when I was a kid, and they seemed like they were more work (weeding) than they…

  • How long is your DNA?

    How long is your DNA?

    How long would the DNA be from a single human if all of the molecules were lined up end to end? Our genome is a little over three billion base pairs (the A,T,G,C sequence of molecular “letters” in our DNA) long (IHGSC 2004). We have two copies per cell, so that puts us at over…

  • Serpent Spear-Onions

    Serpent Spear-Onions

    We are planning to move later this year, and I am really hoping to be able to have a garden again. I grew up gardening, but we haven’t had one in decades because of living in apartments in cities and moving every few years (although I have always grown potted plants in our apartments). If…