• monotremata@lemmy.ca
    link
    fedilink
    English
    arrow-up
    3
    ·
    1 day ago

    Also crabs. I mean, their eyes are often on stalks and more mobile than mammalian eyes, and they’re compound, so they have a very wide field of view, but they’re still often basically in front, and they do apparently provide depth cues for hunting thanks to this.

    https://www.jneurosci.org/content/38/31/6933

    It also occurred to me to look up about dragonflies, and it seems they mostly hunt dorsally (which is a pretty viable option if you’re flying). BUT I found this article about Damselflies, which notes that they rely on binocular overlap and line up their prey in front of them. Which is pretty cool.

    https://www.sciencedirect.com/science/article/pii/S0960982219316641

    • ChickenLadyLovesLife@lemmy.world
      link
      fedilink
      English
      arrow-up
      3
      ·
      19 hours ago

      Horseshoe crabs have nine different types of eyes. Even that tail is essentially a kind of eye, covered with photoreceptors. Not sure of the relevance of this horseshoe crab fact, it’s just fucking interesting.