Friday, August 14, 2020

Velociraptors

Velociraptors lived about 75 to 71 million years ago. There are 2 known species, both from Mongolia. The second species was only discovered in 2008.

They were depicted in the Jurassic Park movie as swift bipedal reptiles with a long tail and an enlarged sickle-shaped claw on each hindfoot, 6 1/2 feet tall and weighing about 180 pounds. Not so, say the scientists. They were bipedal reptiles, they were fast, and they had the fearsome claw. But they also had feathers, and were actually the size of a turkey. The raptors depicted in the movie series were based on a related genus, because the script said they had to look suitably fierce.

Instead of being 6.5 feet tall, velociraptors were as much as 6.75 feet long, snout to tail tip. Scientific artistic renditions show a very long, feathered tail. They were about 1 ft 7 inches high at the hip and weighs about 33 lbs. Although bipedal, their body and tail were roughly parallel to the ground. Their forefeet were also feathered, but were too short to serve as wings.

Their skulls grew up to 10 in long. The jaws were lined with 26-28 widely-spaced, serrated teeth on each side, more strongly serrated on the back edge than the front.

Their hands were large, with 3 curved claws. However, the structure of the wrist bones forced the hands to be held with palms facing inwards and not downwards.

On their feet, the first toe was a small dewclaw, and the 2nd held the ferocious claw spoken about earlier, which could get 2.5 inches long along its outer edge. Only their 3rd and 4th toes were used in walking or running. Although some beliere their 2nd toe claw was used for disemboweling prey, tests have proven it was most likely used for stabbing and holding, to keep their prey from escaping.

If we’re going to compare fiction to fact, then we must consider the depiction in the Jurassic Park movies of velociraptors hunting in packs. Although there are some indications of other species in the family hunting in packs, there is little to no indication in the fossils of velociraptors doing it.

Most of the known velociraptor fossils have been found in current desserts, under conditions that indicate the locale at the time of their death was also arid and covered in sand dunes, or possibly a little less arid.

Now, my first thought about incorporating velociraptors in a story involves a comedy-ish story where a town in the desert is suddenly overrun by predatory turkeys, which turn out to be—according to the local Wise Guy—descendants from velociraptors, long thought extinct these millions of years. Of course, once the raptors ate up all the local cats, dogs, and chickens, they would necessarily start picking on larger prey... large dogs, wolves, goats... children? Alas, I don’t do horror, which is where this thought is quickly leading me. Anybody out there have any other ideas?

https://en.wikipedia.org/wiki/Velociraptor

https://www.livescience.com/23922-velociraptor-facts.html

https://www.nhm.ac.uk/discover/velociraptor-facts.html

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