The Morro Bay kangaroo rat, ''Dipodomys heermanni morroensis'', is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...

to San Luis Obispo County, California. This subspecies of “Heermann” kangaroo rat today lives only in a restricted 2 km area south of Morro Bay in San Luis Obispo County, California. With 22 species, kangaroo rats can be found from the southeastern United States to Panama. They live in warm and semidesert areas, and like gerbils and pyramid rats resemble little kangaroos, with well-developed hind limbs for jumping, short front limbs, and a long tail used for balance during the leap. Being nocturnal animals, their eyes are very large; their ears are average in size. Their hair on the back varies between brown and yellow, while the belly is white. The Morro Bay kangaroo rat is 11 to 13 cm long and its tail measures between 16 and 19 cm. It weighs between 60 and 80g.

Description

The Morro Bay kangaroo rat subspecies is unique to Baywood fine sands, a soil type found in

Morro Bay Morro Bay (''Morro'', Spanish for "Hill") is a seaside city in San Luis Obispo County, California. Located on the Central Coast of California, the city population was 10,757 as of the 2020 census, up from 10,234 at the 2010 census. The town ...

, Los Osos, and

Montana de Oro State Park Montana () is a state in the Mountain West division of the Western United States. It is bordered by Idaho to the west, North Dakota and South Dakota to the east, Wyoming to the south, and the Canadian provinces of Alberta, British Colum ...

on the

Central Coast of California The Central Coast is an area of California, roughly spanning the coastal region between Point Mugu and Monterey Bay. It lies northwest of Los Angeles County and south of San Mateo and Santa Clara counties, and includes the rugged, undeveloped ...

. Their burrows enter the ground at an angle. The Morro Bay subspecies is the smallest of all subspecies. The male is measured to be 300.4 mm while the females are about 295.1 mm long. Their primary food is

seed A seed is an embryonic plant enclosed in a protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiospe ...

s. ''Dipodomys heermanni morroensis'' have 2 to 3 litters a year. In each litter they have between one and seven pups, but the average amount of pups per litter is two. They are born with no hair, eyes and ears closed, and toothless.

Endangered and missing

The Morro Bay kangaroo rat is federally endangered.USFWS (2011). Morro Bay kangaroo rat (Dipodomys heermanni morroensis) - U.S. Fish and Wildlife Service Species Profile. Downloaded on 19 February 2011 from http://ecos.fws.gov/speciesProfile/profile/speciesProfile.action?spcode=A03X.

References

Dipodomys Endemic fauna of California Morro Bay Fauna of the California chaparral and woodlands Natural history of San Luis Obispo County, California Endangered fauna of California ESA endangered species {{Heteromyidae-stub