Pantherophis obsoletus
Key traits and size details for Black Rat Snake.
Length
Weight
Lifespan
The Black Rat Snake (Pantherophis obsoletus) grows into a sleek, dark, athletic colubrid with a strong climbing instinct and a confident presence. Young animals may look patterned and change dramatically as they mature, which gives the species a satisfying before-and-after quality. As a pet, the black rat snake suits keepers who enjoy movement. It can be fast, curious, and food-motivated, so secure caging and calm handling matter. For someone who wants a native-style colubrid with size, gloss, and personality, it has a lot to offer.
Native and introduced range details for Black Rat Snake.
Explore the highlighted native and introduced range for this species. Hover or tap a country to inspect it on the map.
Black rat snakes are native to Central United States west of the Mississippi River, from the Gulf Coast north through the central plains and upper Midwest.
22-32 C
Temperature range
50-70%
Humidity range
Black ratsnakes are managed with temperate warmth: a basking area for daytime heat, a cooler side for retreat, and moderate humidity that naturally rises and falls. Their climate needs feel sturdy and seasonal, matching an active climbing colubrid rather than a delicate tropical specialist.
Reference size-over-age data for Black Rat Snake.
Species reference size over age, built from curated catalog points rather than an individual reptile record.
This chart shows a species reference growth curve, not an individual reptile's recorded measurements.
Male and female length curves are shown together to highlight sexual dimorphism. Male reference points span 0 to 84 months, rising from 0.4 m to 1.5 m, while female reference points span 0 to 84 months, rising from 0.3 m to 1.2 m.
Housing, feeding, and handling guidance collected in one place.
Give Black Rat Snake more usable space than a minimal rack-style setup, with branches, cork, hides, and open travel routes for regular cruising.
Use the sourced 22-32 C thermal range as the enclosure target. Keep humidity around the sourced 50-70% range and verify it with a digital hygrometer. If UVB is used, match the stored Ferguson Zone 2 / UVI 0.7-1.0 target at the basking position.
Prey size should be 1.0-1.25x widest body part.
Feed Black Rat Snake appropriately sized thawed prey and adjust meal size to body condition, not just appetite, because active colubrids often eat readily.
Use steady two-handed support for Black Rat Snake; active snakes often move constantly, so guide rather than restrain them.
Approved catalog and community photos for Black Rat Snake.
No approved gallery images are available for Black Rat Snake yet.
Browse approved catalog images and community-submitted reptile photos for Black Rat Snake. Community images retain contributor attribution in both the gallery and expanded view.
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