Everglades Short-tailed Shrew

Blarina peninsulae

NENot Evaluated

The Everglades short-tailed shrew is a poorly known Florida shrew with a dark coat, compact body, and constantly searching snout. It hunts beneath grass, leaf litter, and other low cover, where insects and small animals provide fuel for a demanding metabolism. Its limited records make the range difficult to draw. Recent taxonomy also separates it from similar short-tailed shrews once grouped under broader names.

US Range
Explore by state

Everglades Short-tailed Shrew across 1 state

Occurrence records, conservation status, and the places it turns up, state by state. Open a state for detail, or visit its full page.

  • FloridaNativeRare32 records

    Notable placesEverglades and Francis S. Taylor Wildlife Management Area · Everglades National Park · Picayune Strand State Forest · Jonathan Dickinson State Park

    Countiesrecorded in 7

    Year-round in Florida, with recorded sightings peaking in February.

IUCN Red List status

NE – Not Evaluated

Not yet assessed against IUCN Red List criteria.

SizeEverglades Short-tailed Shrew beside a 1.8 m adult, drawn to scale
Created by potrace 1.16, written by Peter Selinger 2001-2019 Created by potrace 1.16, written by Peter Selinger 2001-2019
Body length
10–10 cm4 in–4 in
Weight
20–20 g0.7–0.7 oz

Silhouettes drawn to scale against a 1.8 m5 ft 11 in adult.

Observation peakFebruary5 recordsBased on a small number of dated records; the seasonal pattern may not be representative.

Seasonality from research-grade observation dates across the US (5 records, all years). Reflects when the species is recorded, not a guarantee of presence.

Best encounter

Where and when to see an Everglades Short-tailed Shrew

Your best chance: Florida, in February.

Where
FloridaFL
When
February

Life history

The Everglades Short-tailed Shrew (20 g0.7 oz) is an omnivore that first breeds around 0.2 years, carries a 20-day gestation, and bears about 4.1 young per litter. Maximum recorded longevity is 2.8 years.

Life cycle

  1. Gestation20 days
  2. Birthlitter of 4.1 young
  3. Sexual maturity0.2 yr (female) · 0.2 yr (male)
  4. Typical lifespan2.8 years
  5. Maximum recorded longevity2.8 years

Reproduction

Gestation
20days
Litter size
4.1youngaverage
Litters / year
3litters
Age at first breeding
0.2years♀ 0.2 · ♂ 0.2 yr

Diet composition

Omnivore

By foraging composition: 40% invertebrates, 30% plant material, 30% vertebrates.

  • Invertebrates40%
  • Plant material30%
  • Vertebrates30%

Most active around the clock.

Typical values for the species, not local measurements. Maximum longevity is the longest lifespan on record; most individuals live far less.

Commonly confused with

Animals people sometimes mistake for the everglades short-tailed shrew, and how to tell them apart.

Hidden in low cover

This shrew spends much of its time within dense ground cover and shallow tunnels. Its small eyes matter less than touch, smell, and sensitive whiskers in these spaces. A short tail and sturdy body fit its underground movements. Field identification remains difficult because close relatives look similar.

A costly appetite

Shrews burn energy quickly and must feed often. Insects, worms, spiders, and other small prey make up much of the diet. Short-tailed shrews can subdue prey with toxic saliva, an unusual tool among mammals. They remain vulnerable to owls, snakes, and larger ground hunters.

A range still being clarified

The animal is associated with southern Florida, but sparse sampling leaves uncertainty around its exact limits. Changes in names can also split older museum and survey records among different species. A handful of modern observations shouldn’t be read as a population count. Protecting connected wet ground cover remains important while researchers clarify its distribution.

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • PhyloPicCC0 / CC-BY per itemthe to-scale silhouettesBecky Barnes (Soricidae) · Andrew A. Farke (human silhouette, CC-BY 3.0)
  • AnAge (HAGR)CC-BY 3.0longevity, maturity, and gestation figures
  • IUCN Red Listattributed factthe global conservation status
  • Amniote Life-History DatabaseCC0 · public domainreproduction figures
  • EltonTraitsCC0 · public domaindiet and foraging-activity data