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Somebody told me that all dogs have the same size heart. She also… - Robot Skeleton Army Minion #1983 — LiveJournal
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Sat, Aug. 6th, 2005 01:30 pm
Somebody told me that all dogs have the same size heart. She also said that's why danes and other giants have short life spans, that since the heart is the same size as a....chinese crested then it works harder. Makes sense if it's true

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5CommentReply

weaz3l
weaz3l
Aleks
Sat, Aug. 6th, 2005 09:17 pm (UTC)

I never heard they had the same size heart. In fact, I would find it kind of hard that a chihuahua sized heart would even work in a newfoundland or something. However, I have heard that larger dogs have shorter life-spans, one of my mother's cousins used to breed great danes and they did have a shorter lifespan than when she bred poodles. But I've never heard that as being the reason.


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jellybonkerz
jellybonkerz
Selena
Sat, Aug. 6th, 2005 09:34 pm (UTC)

Ummm, That's not completely true could you imagin sadie having the same size heart as your girl, there would be no room in sadies body for any of her other parts, same if your girls were small like sadies the heart couldn't pump enough blood through her big body.

But Danes to have a average size heart, that is one of the reasons why they do have a shorter life span compared to most breeds, shar-peis even have short life spans (not for the same reasons) it's about the same as a danes.

a Dane with the heart the size of a labs is still small comapared to the size of the dane, so it's true just not to the extrem. ^^


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zenkatydid
zenkatydid
Boo
Sun, Aug. 7th, 2005 03:00 am (UTC)

there's no way a chihuahua-sized heart would do any good in a dane.

however, a theory that i have heard is that lifespan is determined by how fast your heart actually BEATS. so, the faster your heartbeat (think humming bird), the shorter your lifespan. something like an elephant or a whale has a REALLY slow heartbeat, and lives for ages.


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axe_girl
axe_girl
Dana
Wed, Aug. 10th, 2005 11:54 am (UTC)

I always heard that as well, I think there's a fair bit of truth in that one. Like you only get so many beats or something.


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zenkatydid
zenkatydid
Boo
Wed, Aug. 10th, 2005 01:29 pm (UTC)

yeah, exactly.


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