Here is my BS answer followed by a good lead:
Rats over time have survived mainly as decomposers much like worms and flies. They eat our waste and then break it down further, but that must require an extraordinarily wide range of foods that are edible to them. Overly developed saliva glands allowed certain rate to proliferate more and over time became intrinsic to their being.
Salivary glands in rats produce and secrete saliva, which helps in the process of digestion. Saliva contains enzymes that begin the breakdown of food, and it also lubricates the food for easier swallowing. Additionally, saliva in rats plays a role in maintaining oral hygiene by preventing infections and keeping the mouth clean.
Dumbo rats are just the same as normal rats, its just their ears look different. They're personalities in no way differ from rats with conventional ears. Though all rats have different personalities, no matter if they are a dumbo or not. Some are playful, some are grumpy and some are sweet natured. I have three rats, one is a dumbo and two are not, and they are all different from each other! So no, Dumbo rats just look different in that their ears are larger and don't stand up as much as normal eared rats. Its up to you to decide if they are cuter or not!
Rats are very adaptable. They survive all round the world, in many different climates. They eat everything and anything. Rats will probably not be affected too much by climate change, because they can adapt.
Well tonsile are actually Lymph nodes and every animal has such organs for protection against invading organisms
Otters are Mustelids, carnivores, and water rats are rodents. Otters are larger, with a rounded muzzle, and a fur covered tail, whereas the water rat has a naked tail.
Salivary glands in rats produce and secrete saliva, which helps in the process of digestion. Saliva contains enzymes that begin the breakdown of food, and it also lubricates the food for easier swallowing. Additionally, saliva in rats plays a role in maintaining oral hygiene by preventing infections and keeping the mouth clean.
Yes. It is necessary for reproduction.
To nurse baby rats.
Sea rats are larger than most land rats, but i don't know what they look like
No, hamsters and rats are different species so can't reproduce. I would have thought rats and hamsters would probably fight, as Syrian hamsters are extremely territorial and rats are so much larger than hamsters anyway.
Rats are larger and normally more aggressive. They live a little longer, and can fend for themselves better. When choosing between a pet mouse or rat, think of what you are looking for. Rats are usually with you longer, but are higher maintenance and are bigger. Rats need larger cages, more food, more water and more care. They may also be more aggressive depending on how they are raised. Mice don't need cages as big, and less food, water and care. Though they only live for about 1-2 years.
yes. all mammals feed there young milk from mammary glands.
how much do rats weigh
Rats are normally about 2-5 inches tall, but have been known to grow much larger under ideal circumstances. The largest rats are the Norway rats, and the African pouched rats.
There are two basic types of rats. Black/roof rats and Norway/brown rats. The brown rat, is also known as the Norway rat, house rat, gray rat, barn rat, and wharf rat, is one of the best-known and is the larger of the two. Roof rats are also called black rats and ship rats.
Dumbo rats are just the same as normal rats, its just their ears look different. They're personalities in no way differ from rats with conventional ears. Though all rats have different personalities, no matter if they are a dumbo or not. Some are playful, some are grumpy and some are sweet natured. I have three rats, one is a dumbo and two are not, and they are all different from each other! So no, Dumbo rats just look different in that their ears are larger and don't stand up as much as normal eared rats. Its up to you to decide if they are cuter or not!
not a lot