Sierra Newt – Powerful Water Drive & Deadly Skin

First published June 10, 2017 California and Sierra Newts are native to California. In winter and spring, Sierra Newts in Nevada County respond to an over-powering urge – to return to the pond or stream where they were born. Reproduction Hormones cause this migratory breeding behavior, known as water drive. (The hormone, prolactin, is also responsible for human breast milk production.) The …

Sierran Tree Frog with Chemical Sensitivities

First published July 9, 2017 Even though it has ‘tree’ in its name, the Sierran Tree Frog is mostly found near the ground. Habitat Tree frogs live in bushes and grass. Their preference is for damp, moist areas. Behavior Large toe pads that allow it to walk on vertical surfaces. The toe pads are also useful for clinging to sticks and twigs. …