Did pterosaurs evolve into birds? Pterosaurs were the first vertebrate animals to evolve powered flight—nearly 80 million years before birds. Over their long reign they evolved some of the most extreme adaptations of any animal. Can a Pteranodon pick up a human? Furthermore, pterosaur legs are...
Did T Rex have an amniotic egg? Yes, T-rex had amniotic eggsbecause the common ancestor of caiman and parrot had amnioticeggs. This means that the trait was passed to the T-rex, the caiman, and the parrot2)Did T. When did the first amniotes evolve? Amniotes first appeared in the fos...
Given the extreme performance on the part of the snakes and kangaroo rats, it is very likely that elastic energy storage is important for both species in circumventing the limits of neuromus- cular function. Future studies should address this possibility. Finally other species of rattlesnake (e....
Here’s what gives me pause: the accessory laminae in theSaurophaganaxholotype are pretty much dead ringers for the spinoprezyg laminae (SPRLs) in thegiant Oklahoma apatosaurine. I didn’t figure that out, Andy Danison did, and it’s one of those things that has just kept growing and ...
After this turn, the drivers began a slight access, that led to the most sinuous part of the circuit: first the 4-sequence of bends known as The Snakes, then the Devil’s Bend curve; this was the entrance to another long radius turn, which was bound for the Long Loop and Peak Bend...
This result immediately raises further questions: (1) why did the cats choose a trial-and-error strategy for the tall but narrow apertures; and (2) why did the cats seemingly rely on their body-size awareness capacity in the case of the shortest openings? Regarding the first question, we ...
and that's what's happening here. Not only did the venom system of snakes and Gila monsters evolve independently, but they also, they also function quite differently from each other.Snakes use their venom to hunt and subdue prey for food, but Gila monsters just, uh, they basically use it...
The outbreaks of emerging and reemerging diseases have a high impact on the human and animal health because they are the underlying causes of disability, death, and long-term illness. For many regions those details are not, or just poorly known. Here we
A single road snakes its way to the base of the mountain from the south, following a ravine that steepens and narrows as it climbs to the trailhead. First, it passes through the small mountain village of Mt. Baldy, then 5 miles later it dead-ends at Manker Flats. From there, the only...
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