Phylogeographically structured lineages are a common outcome of range-wide population genetic studies. In the southeastern United States, disconnection between populations found at the intersection of ...
The black racer can reach a length of six feet making it the largest local serpent. (Clay Wollney) Of the six species of snakes that are native to Staten Island, the black racer (Coluber constrictor) ...
This photo is of a coluber constrictor, one of the vertebrates included in the study.
The racer, Coluber constrictorfoxii, was studied over a six-year period in south- eastern Michigan. The minimum age at maturity was 11 months in males and two years in females. Both sexes grew rapidly ...
A SNEAKY snake has found the perfect hiding spot, amongst the shrubs in a garden. A skilful snake has managed to hide somewhere between the leaves. The snake is a Southern Black Racer, a common ...
This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...
This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...