121 reputation
4
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location San Mateo, CA
age 59
visits member for 2 years, 7 months
seen 2 days ago

Nov
11
comment Comparative leg sizes
@inf3rno: yes, I was more interested in diameter than length, because that sets how much weight a leg can support. More length makes it more prone to break in buckling, but that would argue for more diameter for the longer legs.
Nov
11
awarded  Commentator
Nov
11
comment Comparative leg sizes
@canadianer: That makes the area ratio close to the weight per leg ratio. I'm surprised. Thanks. That would be a reasonable answer.
Nov
11
comment Comparative leg sizes
@canadianer: No, all I get is a horse skull. Not too useful for this.
Nov
11
revised Comparative leg sizes
added 4 characters in body
Nov
11
comment Comparative leg sizes
@canadianer: they are not as long, but in diameter they seem close. I haven't been that close to horses, so I may be off. When I asked a farrier this question he seemed to think it was close.
Nov
11
awarded  Editor
Nov
11
comment Comparative leg sizes
@inf3rno: he was clearly talking about averages, based on the body mass increasing with the cube of linear dimensions and the weigh bearing capability of legs increasing with the square. I suspect the answer is humans stress their legs in ways that deer and horses do not, so it is advantageous to have stronger legs, but that is why I asked.
Nov
11
revised Comparative leg sizes
add info
Nov
11
awarded  Student
Nov
11
asked Comparative leg sizes
Nov
11
comment Body size, what are the evolutionary trade-offs?
There is the classic essay "On Being the Right Size", J. B. S. Haldane
Jul
29
comment “Same” DNA vs genes
Note that siblings sharing half their genes only reflects the approximation that they get one of each pair from their father and one from their mother. If the father and mother have the same genes at that location, the siblings will match 100%
May
29
comment Identify a bird
They fly rather well when they want to.
Apr
19
comment Strictly from a biological perspective, what is the functional expectation of a human being
Although "What is the purpose of human feet" and "What is the purpose of human existence" have the same word pattern, they are quite distinct English sentences, even before the biology question. The first can be answered with what good feet do for people. The second asks what good people do for something (what?) I would -1 this if I had the rep on this site (I have lots on math) Looks like a troll to me. Biology and purpose rarely belong in the same sentence.
Jul
19
comment Do animals exist with an uneven total number of digits?
@ghoppe: others have brought the total above 11.
Sep
9
awarded  Supporter
May
7
comment How many times did endosymbiosis occur?
@Vass: you might look at amazon.com/Oxygen-Molecule-World-Popular-Science/dp/0198607830/… It is fairly tough going for a popular science book, but is about how life learned to live with and use oxygen