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Temperature affect pretty much all metabolic pathways. There are incentive in fishes as well to control their internal temperature. Control of Body temperature can be categorize along two axes, one concerning the source of heat and the other the magnitude of temperature variation. Please have a look at this post to understand the terms endo-, exo-, poikilo-,...


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If they find it pleasurable it can be because physically the anus has a lot nerves in it so stimulating could cause pleasure. Phychologically it is also a matter of penetrating a person which could feel very intimite. And last but perhaps not at least it is something 'dirty' and 'uncommon' which could give the action a little bit more excitement. On the ...


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I'm only aware of two studies that have looked at Rock Pigeon home range size. Note that this isolated research and may not be representative of Rock Pigeons everywhere nor of other pigeon species. Rose and Nagel (2006) tracked 80 feral pigeons using GPS receivers and found 32% remained within 0.3 km of their roost location. Only 7.5% traveled over 2km ...



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