Journal archives for March 2019

March 19, 2019

California salamander is ‘an evolutionist’s dream’.

It is one of only two species that broadly lives up to the “ring species” concept: the ensatina is considered to be a single species, but is characterized by a chain of interconnected populations around California’s Central Valley that can look strikingly different. While the intermediate populations can interbreed, the forms at the southern ends of the loop are so different that they can no longer mate successfully everywhere they meet.

https://news.mongabay.com/2019/03/super-variable-california-salamander-is-an-evolutionists-dream/

Posted on March 19, 2019 00:06 by biohexx1 biohexx1 | 0 comments | Leave a comment

March 28, 2019

Court Upholds Habitat Protection of 1.8 Million Acres for Endangered California Frogs.

A federal judge has upheld critical habitat protection for Sierra Nevada yellow-legged frogs, the northern population of mountain yellow-legged frogs and Yosemite toads in California’s Sierra Nevada mountains. The ruling, issued late Wednesday, came from the U.S. District Court for the District of Columbia.

https://www.biologicaldiversity.org/news/press_releases/2019/california-frogs-03-28-2019.php

Posted on March 28, 2019 20:15 by biohexx1 biohexx1 | 0 comments | Leave a comment

High-speed videos capture how kangaroo rat escapes rattlesnake attack.

Bipedalism may have been favored in kangaroo rats to avoid ambush predators like vipers and owls, says UC Riverside biologist.

https://news.ucr.edu/articles/2019/03/27/high-speed-videos-capture-how-kangaroo-rat-escapes-rattlesnake-attack

Posted on March 28, 2019 21:00 by biohexx1 biohexx1 | 0 comments | Leave a comment