Re: dogs
- From: "Perplexed in Peoria" <jimmenegay@xxxxxxxxxxxxx>
- Date: Mon, 27 Mar 2006 13:46:22 -0500 (EST)
<bob@xxxxxxxxxxxxxx> wrote in message news:e0761p$1koq$1@xxxxxxxxxxxxxxxxxxxxxx
Why do dogs have such short lives?
Short compared to what? I'm not sure that their lives are particularly
short for animals of their size. Most mammals live 3-4 times as long
as they take to reach sexual maturity. By that standard, it seems to
me that dogs are particularly long lived. Big animals, like elephants
and humans, typically mature more slowly and live longer than smaller
animals. But cattle, sheep, horses, and other hoofed grazers mature
(and die) particularly quickly for their size.
Let me throw in some of my own questions:
Does anyone know whether there are animals whose lives are
particularly long or short as compared to the time to maturity?
Any exceptions to the general rule that big animals mature more
slowly? Besides the arteriodactyls and their allies, are there
any anomalously slow or fast developing mammal orders?
.
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