Animal Size

Salt marsh harvest mouse size: How big do they get?

How big does a Salt marsh harvest mouse get? Here is an overview over the average adult age:

A grown Salt marsh harvest mouse (Reithrodontomys raviventris) reaches an average size of 7 cm (0′ 3″).

When born, they have an average size of 0 cm (0′ 0″). Usually, they reach an age of 2.58 years. A full-grown exemplary reaches roughly 10 grams (0.02 lbs). Talking about reproduction, Salt marsh harvest mouses have 3 babies about 1 times per year. The Salt marsh harvest mouse (genus: Reithrodontomys) is a member of the family Muridae.

As a reference: Humans reach an average body size of 1.65m (5′ 5″) while carrying 62 kg (137 lbs). A human woman is pregnant for 280 days (40 weeks) and on average become 75 years old.

The average adult size of a Salt marsh harvest mouse is  (0' 3

The salt marsh harvest mouse (Reithrodontomys raviventris), also known as the red-bellied harvest mouse and sometimes called the saltmarsh harvest mouse, is an endangered rodent endemic to the San Francisco Bay Area salt marshes in CA. There are two distinct subspecies, both endangered and listed together on federal and state endangered species lists. The northern subspecies (Reithrodontomys raviventris halicoetes) is lighter in color and inhabits the northern marshes of the bay, and the southern subspecies (Reithrodontomys raviventris raviventris) lives in the East and South Bay marshes. They are both quite similar in appearance to their congener species, the [Western harvest mouse, R. megalotis], to which they are not closely related. Genetic studies of the northern subspecies have revealed that the salt marsh harvest mouse is most closely related to the plains harvest mouse, R. montanus, (), which occurs now in the Midwest]. Its endangered designation is due to its limited range, historic decline in population and continuing threat of habitat loss due to development encroachment at the perimeter of San Francisco Bay.

Animals of the same family as a Salt marsh harvest mouse

We found other animals of the Muridae family:

Animals with the same size as a Salt marsh harvest mouse

Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Salt marsh harvest mouse:

Animals with the same litter size as a Salt marsh harvest mouse

Here is a list of animals that have the same number of babies per litter (3) as a Salt marsh harvest mouse:

Animals with the same life expectancy as a Salt marsh harvest mouse

Completely different animals, but becoming as old as a Salt marsh harvest mouse:

Animals with the same weight as a Salt marsh harvest mouse

As a comparison, here are some other animals that weight as much as the Reithrodontomys raviventris: