[摘要]rat&mice的区别是什么？
Rats and mice: what's the difference?
1.重量和大小来说，rat比mouse大。成年mouse大概30克左右，rat基本超过350克，最大可到800克。
成年的rat身体有9-11 inch，尾巴有7-9inch，也就是身体超过20厘米
成年的mouse身体只有3-4 inch，尾巴3-4 inch，也就是身体7，8厘米左右
1 inch=2.54 cm
实验室的“资蠼衜ouse，大白鼠就是属于rat。
2.从生物学的角度讲，rat和mouse的差别很大，甚至比人和猿之间的差别还大
比如norway rat有22对染色体，而mouse只有20对
3.从外形来看，rat的脚和尾巴更粗壮。
rat的尾巴比身体短，mouse的尾巴跟身体差不多长。
rat的耳朵相对脑袋来说，比较小，mouse的耳朵相对脑袋比较大。
4.最重要的一条，rat may kill and eat mouse。
How to Tell a Rat From a Mouse
Step 1:
Observe the size of the rodent. If it is medium-sized (around nine inches long) and has a thick, longish tail (around seven inches long), it is a rat. If it is the size of a small bird (about four inches long) and has a long, very thin tail (about four inches long), it is a mouse.
Step 2:
Count the rodent's nipples (assuming it allows you to do this). Rats have six pairs of nipples, but mice only have five pairs.
Step 3:
Look at the animal's head. A rat has a large, thick, stocky head, whereas a mouse has a small, pointy, triangle-shaped head. A rat's ears are also smaller in proportion to its head than a mouse's.
Step 4:
Examine the rodent's feces. Mouse droppings are very small and numerous; you may see 10-20 tiny "pellets" in a pile. The ends of a mouse's feces are pointed. Rat droppings are larger (about 1/2 to 3/4 inches) and more sparse. Rat feces may appear curved.
Step 5:
Inspect your walls for rat rubmarks. Rats tend to use the same paths when walking around your house and like to keep at least one body part touching the wall at all times. Because of this they leave greasy "rubmarks" along the walls. An absence of rubmarks may indicate a mouse infestation.
Step 6:
Check for gnaw marks around the house. Rats gnaw on wood frequently to keep their incisors in shape. Mice do not chew as much.
http://s.dianping.com/topic/857848
http://www.ratbehavior.org/RatsMice.htm
http://blog.sina.com.cn/s/blog_55798e4a01007z7s.html
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1.重量和大小来说，rat比mouse大。成年mouse大概30克左右，rat基本超过350克，最大可到800克。
成年的rat身体有9-11 inch，尾巴有7-9inch，也就是身体超过20厘米
成年的mouse身体只有3-4 inch，尾巴3-4 inch，也就是身体7，8厘米左右
1 inch=2.54 cm
实验室的“资蠼衜ouse，大白鼠就是属于rat。
2.从生物学的角度讲，rat和mouse的差别很大，甚至比人和猿之间的差别还大
比如norway rat有22对染色体，而mouse只有20对
3.从外形来看，rat的脚和尾巴更粗壮。
rat的尾巴比身体短，mouse的尾巴跟身体差不多长。
rat的耳朵相对脑袋来说，比较小，mouse的耳朵相对脑袋比较大。
4.最重要的一条，rat may kill and eat mouse。
How to Tell a Rat From a Mouse
Step 1:
Observe the size of the rodent. If it is medium-sized (around nine inches long) and has a thick, longish tail (around seven inches long), it is a rat. If it is the size of a small bird (about four inches long) and has a long, very thin tail (about four inches long), it is a mouse.
Step 2:
Count the rodent's nipples (assuming it allows you to do this). Rats have six pairs of nipples, but mice only have five pairs.
Step 3:
Look at the animal's head. A rat has a large, thick, stocky head, whereas a mouse has a small, pointy, triangle-shaped head. A rat's ears are also smaller in proportion to its head than a mouse's.
Step 4:
Examine the rodent's feces. Mouse droppings are very small and numerous; you may see 10-20 tiny "pellets" in a pile. The ends of a mouse's feces are pointed. Rat droppings are larger (about 1/2 to 3/4 inches) and more sparse. Rat feces may appear curved.
Step 5:
Inspect your walls for rat rubmarks. Rats tend to use the same paths when walking around your house and like to keep at least one body part touching the wall at all times. Because of this they leave greasy "rubmarks" along the walls. An absence of rubmarks may indicate a mouse infestation.
Step 6:
Check for gnaw marks around the house. Rats gnaw on wood frequently to keep their incisors in shape. Mice do not chew as much.
http://s.dianping.com/topic/857848
http://www.ratbehavior.org/RatsMice.htm
http://blog.sina.com.cn/s/blog_55798e4a01007z7s.html
