20 November 2013 UTC Saurischians and especially theropods have an extensive air sac system that would help thermoregulate 1 2 3 Birds today raise their feathers and and even shake their body at the same time to replace the air trapped by them 4 Feathers and fur aren t only heat traps as a steep temperature gradient works both ways 5 6 As for the commentary on s work the general stance here is that the images only have to have enough artistic merit to be accurate If you want something you think is aesthetically better on the page feel free to be so bold as to do it yourself 17 17