Few enough were innocent in the past, few enough are innocent in the present, we just don’t know why yet.
The limited ROM at the shoulder, combined with the shortness of the forelimbs, prevented the animal from manually seizing prey that was located anywhere but beneath the predator’s chest or the base of its neck, or immediately lateral to the space beneath its chest. At best, manual capture would only have been an option when attacking prey small enough to fit beneath the predator’s chest, or larger prey that had been forced down with the predator’s mouth. In addition, the great head and neck length of D. wetherilli (Welles, 1984) would have enabled the snout to extend much further forward than the hands could reach, making the mouth much more likely than the hands to have made first contact with prey.
In contrast, theropods with a dorsolateral extension of the glenoid, such as members of Dromaeosauridae, had a greater range of shoulder motion and could have seized prey considerably further forward than the predator’s chest
Adam Khor wrote: »
Rubecula wrote: »
this reminds me of something I learned in school many years ago. "Take nothing but photographs. leave nothing but footprints"