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2nd July 2009, 09:23 PM
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Reps: 110,182,959,778,071,968 (power: 0) | | | Ke sez..."Hyenas are larger than males and have around the same birth size as lions but lionesses are smaller than the males.
King cobra males are bigger but female anacondas are bigger.
This theory does not apply like you say it does.
I am just curious on why the size of sex fluctuates so much in the animal kingdom...although not in the primate group." QUOTE//////////////
hespera sez....
Sure it does. You have to look at each species individually and learn their behavior physiology, habitat, predators etc. What is it about theory that you think does not apply? (try to be specific about one type of animal) |
2nd July 2009, 09:30 PM
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Reps: 73,387,680,619,479,952 (power: 0) | | | Sexual selection is nature's way of saying, 'hubba hubba big boy, come over here and get you some.' |
2nd July 2009, 09:33 PM
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Reps: 73,387,680,619,479,952 (power: 0) | | Originally Posted by ke1985  Hyenas are larger than males and have around the same birth size as lions but lionesses are smaller than the males.
King cobra males are bigger but female anacondas are bigger.
This theory does not apply like you say it does.
I am just curious on why the size of sex fluctuates so much in the animal kingdom...although not in the primate group.
Why do some species remain monogomous and others polygamous? Why do some males devour their offspring? Why some females have several mates... Why, Why, why??? Ah, forget it. Too much to learn... Goddidit. |
2nd July 2009, 09:35 PM
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Reps: 3,018,467,977,464,365 (power: 3,018,467,977,468) | | Originally Posted by Hespera Ke sez..."Hyenas are larger than males and have around the same birth size as lions but lionesses are smaller than the males.
King cobra males are bigger but female anacondas are bigger.
This theory does not apply like you say it does.
I am just curious on why the size of sex fluctuates so much in the animal kingdom...although not in the primate group." QUOTE//////////////
hespera sez....
Sure it does. You have to look at each species individually and learn their behavior physiology, habitat, predators etc. What is it about theory that you think does not apply? (try to be specific about one type of animal)
You said large females make sense with birth size so shouldn't this apply to the big cats? |
2nd July 2009, 09:39 PM
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Reps: 3,018,467,977,464,365 (power: 3,018,467,977,468) | | | actually, the female crocodile/alligator is very small compared to the male and she lays a lot of eggs...this theory does not apply here either. |
2nd July 2009, 09:49 PM
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Reps: 3,018,467,977,464,365 (power: 3,018,467,977,468) | | | wouldn't it make sense for all female species to be bigger to protect their young? |
2nd July 2009, 10:03 PM
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Reps: 178,751,386,065,373,056 (power: 0) | | Originally Posted by ke1985 What is the difference of roles between the male and female blue whale?
Whale's life cycles need further study, blues especially, but we know from humpbacks and sperm whales that the males and females live quite different lifestyles, and so any apparent dimorphism can be explained by that, and by mating display.
IS there a particularly great level of sexual dimorphism in blue whales? |
2nd July 2009, 10:03 PM
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Reps: 110,182,959,778,071,968 (power: 0) | | | Ke, like i said, it is a very individual thing for different species! Why do some lay millions of eggs, another only a half dozen? its about what works for them.
It is reproductive stragety; how many can you afford to produce, what is the optimum birth size, do you protect a few of broadcast thousands to the wind? Does the male help to protect them? is it possible to protect them? Do they need protection? l The answers to these explain the size of parents and offspirng.
Some animlas you cant tell at all to look at them whether it is male of female. Try it on snapping turtles! male and female look the same.
What you cited is not examples of a "theory not fitting". it is examples of creatures that youi would have to study in detail to understand their reproductive stragegy, for both the male and female.
Here is a bit of reproductive strategy from plants. A lot of seeds (from berries and fruit) will not germinate unless it has been thru the digestive tract of a bird. Now, do you have any idea why that might be?  |
2nd July 2009, 10:04 PM
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Reps: 73,387,680,619,479,952 (power: 0) | | Originally Posted by ke1985 actually, the female crocodile/alligator is very small compared to the male and she lays a lot of eggs...this theory does not apply here either.
What would be a selective advantage for a male croc to be bigger than females? Yes, ToE takes time and education to understand it, which is why creationism is so appealing for so many who don't want to think and would rather turn on John/Kate, Bachelor, AI, &c. |
2nd July 2009, 10:04 PM
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Reps: 178,751,386,065,373,056 (power: 0) | | Originally Posted by ke1985 wouldn't it make sense for all female species to be bigger to protect their young?
Apparently not, because thats not what we see.
Increased size is not the ONLY way to improve offspring survival. | | |
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