| Subject | Date Asked | Expert |
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| Biggest Prehistoric Parrots?? | 10/30/2009 | David Prus |
Q: Which is the biggest parrot to go extinct(either historically or prehistorically)?? Thank you.
A: Extinct parrots are very hard to classify and describe, so little is known about them The largest ...
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| torosaurus | 10/24/2009 | David Prus |
Q: what would your views on this be if you no of this information? generally speeking i have seen the ...
A: The scientific community is rightly skeptical about the Torosaurus=Triceratops idea. They're very ...
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| biology | 10/21/2009 | David Prus |
Q: i need help making a cladogram using slugs catfish frog tiger and a human. i have to tell if ...
A: This is more of a biology question, but it's fairly simple Slugs-cells Catfish-cells, backbone ...
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| videos | 10/18/2009 | David Prus |
Q: these do exist but are rare and they would show the displays in a musuem or exhibition. if you know ...
A: I'm afraid I don't know of any such videos. I have only seen displays in assorted documentaries ...
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| bite force | 10/10/2009 | David Prus |
Q: please ,what is the bite force: marsupial lion ; triceratops ; lion panthera atrox ; bears ...
A: Thylacoleo-2101 Newtons Triceratops-Unknown, but likely to be very high American Lion-Between 1000 ...
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| oldest horse? | 9/13/2009 | David Prus |
Q: What is the oldest ancestor of horses?
A: Well, it depends on you definition. The Oldest member of the genus Equus is E. stenonis from Italy, ...
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| Dinosaur habitat | 9/7/2009 | David Prus |
Q: I am fascinated in paleontology and particularly in how prehistoric animals could cope in the modern ...
A: Some of the dinosaurs could have. The small ornithopods and theropods in the Cretaceous period were ...
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| Largest therapsid | 8/30/2009 | David Prus |
Q: What is the largest therapsid ever?
A: I've been asked this question before, and it's a good one, considering how little the public is ...
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| oldest duck? | 8/20/2009 | David Prus |
Q: What is the oldest ancestor of ducks?
A: The earliest Anatid (true duck) is Eonessa from the Eocene of the Western United States. The ...
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| Evolution | 8/15/2009 | David Prus |
Q: Is there any reasons that proove evolution is there any reasons that disproove evolution also i was ...
A: Evidence for : http://www.talkorigins.org/faqs/comdesc/ Evidence against: ...
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| Dinosaurs | 8/11/2009 | David Prus |
Q: David i wish you are fine,I want to ask you something important about dinosaurs.what is the main ...
A: Nadia It's very hard to tell what exactly caused the dinosaurs' extinction. It was probably a ...
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| largest | 8/10/2009 | David Prus |
Q: hy-how long is the largest and longest dinosaur eggs? i did find some photos online that state the ...
A: The largest dinosaur eggs were of Chinese titanosaurs, about a foot in length. The "1 metre" ...
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| birds vs people | 8/8/2009 | David Prus |
Q: I have a basic understanding of the theory of evolution but there is one question I can not seem to ...
A: Good question. I think part of it is the fact that birds specialized their arms (in addition to ...
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| Dinosaurs and Ratites | 8/4/2009 | David Prus |
Q: My query concerns perceived versus true taxonomic differences and whether distinction between two ...
A: Good question. Often there's quite a bit of overlap, and derived characteristics may obscure ...
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| Modern Relatives | 7/25/2009 | David Prus |
Q: 1)Do you have information on the closest living relatives of the following prehistoric animals?? ...
A: 1) Panthera atrox's relative is the Gir Forest Lion Ursus Spelaeus' relative is the Eurasian Brown ...
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| Keeled sternum in pterosaurs? | 7/23/2009 | David Prus |
Q: Hope you don't mind me pestering you with another question! This time it's pterosaurs. I have only ...
A: Every scientific paper I've ever read reports carinae on pterosaur sternums. I don't understand ...
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| Weight of Dinosaurs | 7/22/2009 | David Prus |
Q: David Prus Can you tell me the weight of these following dinosaurs and marine reptiles that I can't ...
A: 1. The problem with Tyrannosaurus weight is that it has changed again and again. It was probably ...
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| Feeding Behavior | 7/22/2009 | David Prus |
Q: 1)Can you tell me the feeding technique of the following animals?? Borhyena Helicoprion Anomalocaris ...
A: 1. Borhyena was an ambush predator, killing with its large canines and feeding with the thick, ...
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| Question | 7/21/2009 | David Prus |
Q: Did Amphicoelias really grow to 200 feet in length?
A: Not exactly. More like 150 feet based on a reassessment recently. It's hard to tell, considering all ...
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| Largest organisms | 7/19/2009 | David Prus |
Q: 1)Can you tell me the differences between Tremarctinae bears and other sub-families of bears?? 2)Can ...
A: 1. Tremarctine bears are an American branch of the bear family, with shorter muzzles, wide molars ...
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| Fossils | 7/16/2009 | David Prus |
Q: i know imust be getting annoying asking so many questions 1) i live in Aberdeen (scotland) and i ...
A: Well, there's a lot of places for Carboniferous and Jurassic marine fossils. Here's some sites on ...
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| Ammonite | 7/16/2009 | David Prus |
Q: i recently got a pyritized ammonite whihc isin a rock the question is how doi polish it because it ...
A: 'Fraid not. Most radiometric methods require specialized machines like mass spectrometers. You'd ...
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| Ammonite | 7/16/2009 | David Prus |
Q: i recently got a pyritized ammonite whihc isin a rock the question is how doi polish it because it ...
A: First, try to find out where it came from and how old the rock was. That should narrow it down. ...
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| Ammonite | 7/16/2009 | David Prus |
Q: i recently got a pyritized ammonite whihc isin a rock the question is how doi polish it because it ...
A: It just means that pyrite was the mineral that "filled in" the fossil. This is rare, considering how ...
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| Weight of Dinosaurs | 7/14/2009 | David Prus |
Q: David Prus Can you tell me the weight of these following dinosaurs and marine reptiles that I can't ...
A: 1. Brachiosaurus' weight was, according to Christiansen, overestimated in the past and was more ...
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| Thylacoleo | 7/13/2009 | David Prus |
Q: and thank you for your useful answers: If Thylacoleo encountered the following animals, which would ...
A: Quinkana, Shansisuchus, Pristichampsus and Ornithosuchus seem too big and heavily armed and armored. ...
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| Questions | 7/12/2009 | David Prus |
Q: yeah a few uestiosn 1) how can a long snout of a spinosaurus make it a fish eater 2) what killed the ...
A: Plenty. Here's some of the more interesting ones: Turtles: Archelon: Giant sea turtle Protostega: ...
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| Questions | 7/12/2009 | David Prus |
Q: yeah a few uestiosn 1) how can a long snout of a spinosaurus make it a fish eater 2) what killed the ...
A: I might have answered this question before. My answer was: "As for others, there are ...
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| Questions | 7/12/2009 | David Prus |
Q: yeah a few uestiosn 1) how can a long snout of a spinosaurus make it a fish eater 2) what killed the ...
A: 1) Three things make Spinosaurus a piscivore: The claws are long, hooked, and without a cutting ...
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| Primitive Dinosaurs | 7/11/2009 | David Prus |
Q: and thank you for your useful answers: 1)Can you put these dinosaurs from the most primitive to the ...
A: 1) Dilophosaurus Ceratosaurus Kryptops Rugops Abelisaurus Proceratosaurus Ornitholestes Guanlong ...
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| A couple of questions | 7/9/2009 | David Prus |
Q: 1) how can scientists say that troodon was the smartest without having the brain or seeing how it ...
A: 1) Intelligence often depends on the ratio of brain size to body size. Troodon has the largest brain ...
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| Crocodilians "cold-blooded" as a secondary adaptation? | 7/9/2009 | David Prus |
Q: Many thanks for your answer about Ornithosuchus, which makes things much clearer! I knew I had to ...
A: Thing is, Erythrosuchids were basal but not ancestral to anything. They were ambush predators, but ...
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| Ornithosuchus as a swimming predator? | 7/8/2009 | David Prus |
Q: I'm delighted to have found this site as I have so many questions! I was reading AD Walker's classic ...
A: Fascinating idea. There are a couple problems; the teeth are curved backwards and the head is short. ...
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| Amphicyon | 7/7/2009 | David Prus |
Q: 1)Which were the probable prey items for Amphicyon?? 2)Can you provide me a pic of the claws of ...
A: 1)It was widespread across the Northern continents from the USA to China to India to Europe, so ...
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| Anteosaurus | 7/6/2009 | David Prus |
Q: and thank you for your resourcefulness. Who will win between Anteosaurus and these animals?? ...
A: The Thylacines are smarter and quicker, but they lack the power to defeat an Anteosaur Moschops was ...
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| Diictodon/Dicynodon | 7/5/2009 | David Prus |
Q: Is a Diictodon a Dicynodon? I don't think so, but If they aren't the same creature then is the only ...
A: Diictodon is a kind of dicynodont. Dicynodon and Diictodon are both dicynodonts. Diictodon are a ...
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| 3 questions | 7/5/2009 | David Prus |
Q: (1) what subjects should i study to become a palentogist (2) how should i go about becoming a ...
A: 1. Depends on the Institution (bigger=higher), credentials (more=higher), and the field (more ...
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| 3 questions | 7/5/2009 | David Prus |
Q: (1) what subjects should i study to become a palentogist (2) how should i go about becoming a ...
A: That's unlikely. While it may have been true for the larger species, there were still a lot of ...
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| 3 questions | 7/5/2009 | David Prus |
Q: (1) what subjects should i study to become a palentogist (2) how should i go about becoming a ...
A: 1) Geology, zoology (biology in general, actually), anatomy, some physics, some chemistry, and ...
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| who's closer to birds?? | 7/4/2009 | David Prus |
Q: 1)Can you put these families of dinosaurs from the less bird-like to the most bird-like?? ...
A: 1) Coelophysidae Abelisauridae Ceratosauridae Megalosauridae Spinosauridae Allosauridae ...
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