Fieldnotes: November 2019

October was a slow month for fieldwork for the Longleaf Savannas team, so in this month’s episode, Ben shares a highlight reel from a recent field herping trip to southern Arizona. A special thank you to David Hutto and Chance Feimster for providing additional photographs and video.

Photo of the Month: November

With winter seemingly in full force in the Great Northern Forests it is likely to be at least four months before reptiles and amphibians are out again in large numbers in the Great Northern Forests. For many, a Blue-spotted Salamander (Ambystoma laterale) such as this one will be the first species they see next spring, […]

October: Photo of the Month

A Boyd’s Forest Dragon (Hypsilurus boydii) from northeastern Queensland, Australia. These lizards inhabit tropical rain-forests, spending a majority of their time perched vertically on tree trunks. Their excellent camouflage helps them avoid potential predators.

Lighting a Match- Feb 2019

Sex Determination in Reptiles

Embryonic sex determination (i.e., the mechanism that determines whether embryos develop into males or females) is a fundamental biological process that has significant implications in determining sex ratios in natural populations.  Many vertebrates, including mammals, birds, amphibians, and some reptiles exhibit genotypic sex determination (GSD), where males or females are produced based on the sex […]