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RE: Could a sauropods shift lungs forward to make his front lighter for reaching up 'tre trunks'?
> From: owner-DINOSAUR@usc.edu [mailto:owner-DINOSAUR@usc.edu]
> On Behalf Of Janet m vandenburgh
> Alligators' Muscles Move Lungs Around For Sneaky Maneuvers In
> Water (March 14, 2008) -- Without a ripple in the water,
> alligators dive, surface or roll sideways, even though they
> lack flippers or fins. Biologists have discovered alligators
> maneuver silently by using their diaphragm, pelvic, abdominal
> and rib muscles to shift their lungs like internal flotation
> devices: toward the tail when they dive, toward the head when
> they surface and sideways when they roll. ... > full story
While this wouldn't work for sauropods (probably rigid lungs, and definite
air sac system), it is yet another nice aspect of the mobile pubis/hepatic
piston mechanism within Crocodyliformes.
Thomas R. Holtz, Jr.
Email: firstname.lastname@example.org Phone: 301-405-4084
Office: Centreville 1216
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
Faculty Director, Earth, Life & Time Program, College Park Scholars
Mailing Address: Thomas R. Holtz, Jr.
Department of Geology
Building 237, Room 1117
University of Maryland
College Park, MD 20742 USA