Theropods calling

I like that you have to know some science to get today’s Off the Mark cartoon (by Mark Parisi):

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h/t: Woof

 

11 Comments

  1. Posted November 24, 2013 at 10:37 am | Permalink

    Excellent! :D

  2. Michael Fisher
    Posted November 24, 2013 at 11:09 am | Permalink

    Question for someone:- Strictly within the clade Dinosauria are birds the only known flyers?

    • Julie
      Posted November 24, 2013 at 12:33 pm | Permalink

      Yes, you are correct, because pterosaurus are not dinosaurs, though they are archosaurs like dinosaurs and crocodiles.

    • Bruce Lyon
      Posted November 24, 2013 at 1:01 pm | Permalink

      No, Microraptor was a four winged dinosaur that flew (gliding I suspect but there are papers on this. There were probably others too.

      • Michael Fisher
        Posted November 24, 2013 at 1:51 pm | Permalink

        Thanks for that. A quick Google indicates that some people think Microraptor might have represented a “pre-avian” group directly on the line of descent to “birds” ~ i.e. the bird line came from four-winged Microraptors. So I suppose my revised question is…

        Within the Dinosauria was flapping flight “discovered” only once, the same as for Mammals [bats]? The *jump* from gliding flying to flapping flying is so costly I would bet we’ll not find an independent “discovery” of flight among the dinos, & no doubt there are many unrecognised Dino gliders in the bone collections ~ since gliding is such a common solution which is much cheaper than flying.

        • BilBy
          Posted November 24, 2013 at 5:31 pm | Permalink

          Have a look at the fantastic ‘Tetrapod Zoology’ website of Darren Naish: TetZoo has just done a post on Microraptor

          • Michael Fisher
            Posted November 24, 2013 at 5:51 pm | Permalink

            Very interesting! thank you BilBy have subbed to keep up on the latest. Very unlikely to have been a flapper then & flew as well as a lightweight feathered plank. :)

  3. Posted November 24, 2013 at 11:17 am | Permalink

    Well, Alxasaurus is rather avuncular.

  4. Alex
    Posted November 25, 2013 at 2:53 am | Permalink

    Guess who’s coming for dinner…


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