David Remsen

Naturalist

My activity

  • Profile picture of David Remsen who took this action.

    David Remsen commented on "Physalia physalis (Linnaeus, 1758)":

    Physalia reproduce both sexually and asexually. They start as separate egg and sperm forming a zygote. The zygote develops and then asexually produces the different component polyps. In older Cnidarian literature these polyps were called "persons." I don't know if the term is still in use. These persons may be modified polyps or medusa. Their evolutionary history would suggest they are a colony, composed of discreet individuals but they are so well-integrated that they appear more as a single organism. Another case or trying to put neat edges on an edge-less continuum.

    about 1 year ago

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    David Remsen commented on an older version of Habitat:

    Pretty lean data object

    over 1 year ago

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    David Remsen commented on "Image of an unknown taxon":

    This doesn't look like a worm

    over 2 years ago

  • Profile picture of David Remsen who took this action.

    David Remsen commented on "Image of an unknown taxon":

    This doesn't look like a worm

    over 2 years ago