How were the Pterodactyls able to fly when they weight more than birds?

Subject: How were the Pterodactyls able to fly when they weight more than birds?

Date: Wed Sep 19 08:05:29 2001
Posted by Shelagh
Grade level: nonaligned School: No school entered.
City: adelaide State/Province: No state entered. Country: Australia
Area of science: Zoology
ID: 1000901129.Zo

Message:


I understand that the limit of flight for a bird is around 40 pounds i.e the 
Mute swan and the African Bustard.  So I'm a little puzzled as to how an animal 
the weight of the Pterodactyls and the like were able to take off and stay 
aloft, particularly from a carcass or the ground?

Re: How were the Pterodactyls able to fly when they weight more than birds?

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