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In the Mesozoic, No One Can Hear You ScreamJanuary 10th, 2006 by Mike Keesey :: see related comic |
Well, almost. Gleich et al. 2005 extrapolated an osteological indicator of hearing range (namely, the length of the basilar papilla) from living archosaurs (primarily birds, also crocodylians) to Allosaurus, Archaeopteryx, and Brachiosaurus. Archaeopteryx, a mere bantamweight, could have heard the same ranges as a modern bird. But bigger dinosaurs like Allosaurus and especially Brachiosaurus had ranges significantly lower than that of us humans. Allosaurus‘ range probably cut off at around 3 kHz, the average pitch of a human scream. With Carnotaurus being of similar size to Allosaurus, it’s probably reasonable to assume the same for Carney.
(Not that he cares….)
Reference:
- Gleich, O., R. J. Dooling, and G. A. Manley. 2005 December. Audiogram, body mass, and basilar papilla length: correlations in birds and predictions for extinct archosaurs. Naturwissenschaften 92(12):595–598.
That’s amazing, so..maybe we should reconstruct the Phorusrachids and Gastornids as booming,roaring like Emus.Lots and lots of Bass 
.Huh, you probably would’ved felt a T.rex’s roar rather than truely heard it.Not that it matters, you’re dead anyways after She smelled your reaction >:D
Do emus roar?
Phorusrhachids and gastornithids weren’t quite on par, sizewise, with Allosaurus, so I wouldn’t think they’d've had trouble with human screams. (In fact, Carnotaurus is a bit smaller than Allosaurus, too, so maybe Carney’s just pretending….)
Good point about the smell!
Yes, Male Emus give off tremendous,booming roars during the mating season.
True, the largest Terror-birds were “only” about 500 kgs.
Keep up the good work!
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