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Quote from: Gwangi on July 15, 2012, 02:21:01 AMWell I am by no means a scientist but I would think you would need evidence first to back up whatever claim you may have.Yep, I'm fully aware of that. My theory is based almost entirely on conjecture, and if I, a person with no scientific credentials, were to have it published, it would ultimately be ignored. The "evidence" I have is derived from the relationship between dinosaurs and birds, and it makes many assumptions. What I could do is at least propose it, and then attempt to look for more evidence to further support or disprove my theory. Of course, without living specimens, it will be next to impossible to come up with anything conclusive.
Well I am by no means a scientist but I would think you would need evidence first to back up whatever claim you may have.
Quote from: andyshores on July 15, 2012, 06:22:37 AMI think one of the more interesting aspects would be how many species/individuals would be present or visible at any one time in any one place. On an African savannah you might see a ton of animals, even a number of species, but then take jaguars for instance - even where they're abundant (relatively speaking) you'll hardly ever see one. Also consider that most dinosaurs were huge compared to modern day animals - were they more out in the open? The whole thing is mindblowing when you really think about itSomething else to think about. Modern birds are everywhere and generally easy to spot. At any one time in my yard I can spot half a dozen species or more depending on how long I'm out there. I saw two species of mammal (squirrels and humans) and at least a dozen different birds. They are generally diurnal animals that have no issue with being out in the open. Were dinosaurs similar? They seem to have been. Would they have been just as abundant and easy to view? Mammals are descended from nocturnal creatures and many of them still are nocturnal and much more secretive than birds. We seldom see mammals out in the open (except for places like the African savanna). I think we would find dinosaurs much easier to observe than mammals.
I think one of the more interesting aspects would be how many species/individuals would be present or visible at any one time in any one place. On an African savannah you might see a ton of animals, even a number of species, but then take jaguars for instance - even where they're abundant (relatively speaking) you'll hardly ever see one. Also consider that most dinosaurs were huge compared to modern day animals - were they more out in the open? The whole thing is mindblowing when you really think about it
Quote from: Gwangi on July 15, 2012, 06:33:00 AMQuote from: andyshores on July 15, 2012, 06:22:37 AMI think one of the more interesting aspects would be how many species/individuals would be present or visible at any one time in any one place. On an African savannah you might see a ton of animals, even a number of species, but then take jaguars for instance - even where they're abundant (relatively speaking) you'll hardly ever see one. Also consider that most dinosaurs were huge compared to modern day animals - were they more out in the open? The whole thing is mindblowing when you really think about itSomething else to think about. Modern birds are everywhere and generally easy to spot. At any one time in my yard I can spot half a dozen species or more depending on how long I'm out there. I saw two species of mammal (squirrels and humans) and at least a dozen different birds. They are generally diurnal animals that have no issue with being out in the open. Were dinosaurs similar? They seem to have been. Would they have been just as abundant and easy to view? Mammals are descended from nocturnal creatures and many of them still are nocturnal and much more secretive than birds. We seldom see mammals out in the open (except for places like the African savanna). I think we would find dinosaurs much easier to observe than mammals.Agreed, however... Birds can fly so its not all too risky for them to be out in the open - they can get away from most predators fairly easily/ Spot prey from above easily, so they have that luxury. Non avian dinos would probably have to follow the average land dwelling rules more closely
Quote from: andyshores on July 15, 2012, 07:50:32 AMQuote from: Gwangi on July 15, 2012, 06:33:00 AMQuote from: andyshores on July 15, 2012, 06:22:37 AMI think one of the more interesting aspects would be how many species/individuals would be present or visible at any one time in any one place. On an African savannah you might see a ton of animals, even a number of species, but then take jaguars for instance - even where they're abundant (relatively speaking) you'll hardly ever see one. Also consider that most dinosaurs were huge compared to modern day animals - were they more out in the open? The whole thing is mindblowing when you really think about itSomething else to think about. Modern birds are everywhere and generally easy to spot. At any one time in my yard I can spot half a dozen species or more depending on how long I'm out there. I saw two species of mammal (squirrels and humans) and at least a dozen different birds. They are generally diurnal animals that have no issue with being out in the open. Were dinosaurs similar? They seem to have been. Would they have been just as abundant and easy to view? Mammals are descended from nocturnal creatures and many of them still are nocturnal and much more secretive than birds. We seldom see mammals out in the open (except for places like the African savanna). I think we would find dinosaurs much easier to observe than mammals.Agreed, however... Birds can fly so its not all too risky for them to be out in the open - they can get away from most predators fairly easily/ Spot prey from above easily, so they have that luxury. Non avian dinos would probably have to follow the average land dwelling rules more closelyI don't think the diurnal tendencies of birds has to do with the ability to fly, though you make a good point. Even ground dwelling birds are mostly diurnal. Birds rule the day, few mammals are very active at this time, most are nocturnal or crepuscular. You could say it is actually safer for birds to be diurnal animals as many of the mammals that hunt them are active at night...when birds are sleeping. So the boldness of diurnal birds is actually the safer alternative. I think birds are diurnal because they evolved from diurnal animals (dinosaurs) and mammals are nocturnal because they evolved from nocturnal animals and may have had to be nocturnal to avoid diurnal dinosaurs! There is a reason most birds have awesome color vision while most mammals have poor black and white vision. There is also a reason why birds (and reptiles too who are mostly diurnal) are generally colorful while mammals are mostly drab and boring in color.