Pos Extreme Red Hognoses

Pos Extreme Red designates a western hognose (Heterodon nasicus) linked to the Extreme Red colour line without being confirmed as a match for it. The catalogue carries it as its own entry alongside Extreme Red because breeders and marketplace genetic calculators apply a separate "possible" label to line-bred, polygenic colours, the same way an uncertain outcome gets flagged for any trait that cannot be read from parentage alone. A keeper comparing the two listings should treat Pos Extreme Red as the lower-certainty version: the animal may carry the line's saturation, but nothing in the label confirms it meets the bar that earns the plain Extreme Red name.

Appearance

Extreme Red is judged on saturation rather than pattern: an intense, even wash of red or deep orange across the body, more vivid than the base "Red" phase hognoses carry naturally, with backgrounds running from deep crimson to bright tangerine. Expression varies widely from animal to animal, which is the nature of a polygenic, line-bred colour rather than a fixed, single-gene look. A Pos Extreme Red western hognose is one where that saturation has not been confirmed to reach the standard the line is bred for. No source sets out exactly what separates a Pos animal's current look from a confirmed one, so a buyer should judge the actual photos rather than the label.

Genetics

Extreme Red is a line-bred, polygenic colour: built up over generations by selecting the reddest individuals for redness alone, rather than tracing to one Mendelian gene or an incomplete-dominance trait. That is also what the "possible" in Pos Extreme Red reflects: breeders and marketplace genetic calculators apply "possible" to line-bred and polygenic colours generally, because an individual's outcome cannot be confirmed with the certainty a single-gene trait allows. The Extreme Red line traces to Extreme Hogs, who developed it by line breeding the highest-red individuals available.