Determining the age of a hamster can be easy, as long as you have store-bought it. Think back to the day you bought your hamster, and add that time to 4-6 weeks and that will give you a rough prediction to how old your hamster is.
It can be difficult to identify a rat's age. If their fur is fluffy and fuzzy and they weigh less than 250 grams, they are likely younger than 3 months of age. Rats molt for the first time and gain their adult coat between 6 and 10 weeks, and if you can see different patches of fur, one of which being sleek and the other being fuzzy, it will be around that age. Once a rat is fully grown, between 4 and 6 months, they will weight around 250 - 400 grams and it can be difficult to tell a rat that is that age from one who is nearing two years. After two years, a rat begins to show signs of age and may lose a bit of weight and their fur may become a little more sparse. They will also be a lot less active, preferring to sleep more often.
There is no defined way of how to do this. It is usually an estimation game, if you are trying to figure out a pup's age then go to: http://www.egerbil.com/gerbil_birth_to_three_years_of_age Otherwise if a gerbil is just starting to gray up they are probably over 2 years of age approximately. Sorry that this is not much of an answer.
You cannot tell the exact age of a gerbil unless you or the person you are getting it from know the date of birth. However, you can tell a round-about age.
Under 7 days: No fur; would have pigmentation or total pinkness; eyes unopened
Under 2 and 1/2 weeks: Fur covering body; eyes unopened; still nursing
Under four weeks: Still nursing, but may try to mouth solid foods; eyes typically open around day 17
Under six weeks: Gerbil should not be for sale. Gerbils should stay with their mothers until
at least six weeks, if not eight.
Under two months: Certain colors, such as nutmegs (rich orange), will go through a
dramatic color change in their first molt. Gerbils are typically about 2-3 inches during this time, and growing!
Older than two months: Gerbils will reach their peak size of about 3-5 inches, plus an equally sized tail, at around 6 months of age.
you can look up videos for curtian ages, or maybe even pictures
You tell an adult,And..... If you tell howoldey is,He know's_ If you don't tell a mouse howoldey is,He hides with the other mouses;adult equals old minus howoldey.
you can tell how old a hairless rat is... count how many wrinkles it has if it only has 1 wrinkle it's 1 years old
The boy has male parts-easy to see.
The oldest rat on record lived to the ripe old age of 7 years and 4 months. The normal rat age span is 3 years.
The dust over them or absence thereof will tell you if they are in a secluded area. Look for tracks in the dust. You can use an inert tracking powder if there is not already dust there for you to use.
It means to tell or spy on someone. Used in a sentence, I am not going to rat on my friends,i don't like doing that.
the Rat Impulse LTD has: a regulator, The regular Rat Impulse does not.
In the Middle Ages there were no age requirements. Most child by age 7 were working and some were rat catchers.
rats are mature at a month and a half of age
There is no reliable way to know for sure the actual age.
mice or rat
18 to 30
I don't know the age but i know the bigger ones are adults and the smaller ones are younger.
The rat moves with its four paws. It can scurry and dart away from predators. It basically does what its instincts tell it to do.
A rat has a longer and fatter tail. Also, rats are a lot bigger than mice.