Science Blog

Camp Pendleton retains an incredible amount of biodiversity, including insects and spiders that are critical to ecosystem health. Museum scientists are partnering with the U.S. Marine Corps to study and document them, with the goal of creating a baseline inventory of what lives where. Read more.


Bridges make great bat roosts. But what happens with the bridge is crumbling and needs repair? That’s where our scientists come in. Read more.


Who doesn’t love dune bugs? Our entomologists are studying insects in the dunes of Baja California to gather data that will help inform conservation decisions around these incredibly unique—but potentially threated—ecosystems. Read more.


Museum scientists are taking action to restore California Red-legged Frog habitat in Baja California in response to massive declines in their population. Read more.


Museum scientists go on expeditions to remote areas of the Baja California Peninsula to study and better understand the biological diversity of areas that are not well documented. One such expedition took place in November 2017 in one of Baja California Sur’s most spectacular cardón forests. Read more.


Rediscovering Lost Species

Posted: January 16, 2019

When plants or animals are so rare, we don’t even know if they need protection. So knowing they exist is the first step in conservation. Over the past couple of years, our researchers succeeded beyond anyone’s expectations at rediscovering lost species. Read more.


Scientists working in Baja California resurrected a species from the ashes of extinction, and are now working with local agencies on a conservation plan. The San Quintin kangaroo rat was held as an example of a modern extinction due to agricultural conversion in the San Quintín area of Baja California. The animal had not been seen for 30 years, until its recent rediscovery. Read a first-hand account by the researchers.  Read more.


In February 2017, the Museum received word that a manuscript written by staff paleontologists and outside colleagues about the discovery of mastodon fossils showing signs of human activity had been accepted for publication in the scientific journal Nature. As expected, the April 27 publication and announcement garnered widespread media coverage and stirred dialog within the scientific community. Some have been supportive and consider the hypothesis compelling and one that should not be ruled out. Others have dismissed it as questionable science or outlined why various interpretations of evidence are wrong.  Read more.


Did you know the diversity of mammals in San Diego County is greater than any other county in the United States? It’s true—and now, thanks to a book authored and edited by staff at the San Diego Natural History Museum, along with several other authors and more than 40 contributors, amateur naturalists and professional biologists have a complete reference guide for San Diego fauna. Read more.


Within the walls of the Museum are stored close to 9 million specimens in our combined collections, which represent an unparalleled treasure trove of local plants, animals, and fossils amassed over a span of more than 140 years. They tell a unique and rich story about the historical ebb and flow of our regional natural environment.  Read more.