The story of the Australian lungfish has made this week’s issue of Nature. Remember, it’s not too late to keep the pressure on.
Pharyngula
Evolution, development, and random biological ejaculations from a godless liberal
The story of the Australian lungfish has made this week’s issue of Nature. Remember, it’s not too late to keep the pressure on.
This fish has an absolutely perfect name: the Rosy Lipped Batfish.
It isn’t much better in Latin, either. Ogcocephalus porrectus. No wonder it’s scowling.
Carl Zimmer wrote on evolution in jellyfish, with the fascinating conclusion that they bear greater molecular complexity than was previously thought. He cited a recent challenging review by Seipel and Schmid that discusses the evolution of triploblasty in the metazoa—it made me rethink some of my assumptions about germ layer phylogeny, anyway, so I thought I’d try to summarize it here. The story is clear, but I realized as I started to put it together that jeez, but we developmental biologists use a lot of jargon. If this is going to make any sense to anyone else, I’m going to have to step way back and explain a collection of concepts that we’ve been using since Lankester in the 19th century.
They even show up on the weather radar. I think a weather report that predicted a chance of buzzing clouds of arthropods would be cool.
So go watch some deep-sea movies—there are a couple of exotic cephalopods, some predatory arthropods and fish, and a very pretty sea cucumber. It cooled me right down.
(tip o’ the hat to Phil)
I’ve had about 8 requests for further information on saving the Australian lungfish. That’s a good start, and thanks to everyone who wrote in, but it’s not enough. Look at that beautiful finny beast to the right; do you want them all to die? And seriously, look at those fins: aren’t they spectacular? Don’t you want to know how they develop and how they evolved?
The Australian government is planning to dam the last rivers on which these spectacular vertebrates live, and that will be it for them. We’ll be left with nothing but bones and tissue samples and few relics in aquaria.
Those sure are beautiful, informative bones…but we can learn so much more from the living animal.
So let’s make one more big effort to let the Australian government know that there is international opposition to their cavalier destruction of an important and unique habitat. Losing these special creatures is a loss of scientific information and a loss of an unusual element of the Australian ecosystem.
If you’ve got a moment, write a polite and considerate letter to one or all of the following members of the Australian government. Let them know that they are planning to do irreparable damage to their environment, and the world is watching them.
It doesn’t have to be a long letter, it would be sufficient to write a brief note that says the the world values these remarkable, unique animals, and that you think more effort must be made in cooperation with the scientific community to find alternatives. Remember, though: politeness and sincerity are paramount. Don’t give them an excuse to dismiss the email as the work of cranks.
A new report in this week’s Nature clears up a mystery about an enigmatic fossil from the Cambrian. This small creature has been pegged as everything from a chordate to a polychaete, but a detailed analysis has determined that it has a key feature, a radula, that places it firmly in the molluscan lineage. It was a kind of small Cambrian slug that crawled over matted sheets of algae and bacteria, scraping away a meal.
