Narrow Endemics

Animals with restricted ranges. For inquiries about use of any of the ...

Updated: Apr 17, 2014 6:40pm PST

Frogs on the Bridge

Selected frog images from central America. For inquiries about use of ...

Updated: Apr 17, 2014 6:40pm PST

Atelopus: The World's Most Endangered Large Genus

The genus Atelopus is a group of neotropical toads with over 100 membe ...

Updated: Apr 17, 2014 6:40pm PST


In January of 2014 I finally made it to Madagascar. I had been wantin ...

Updated: Apr 10, 2014 8:15am PST

California Salamanders

The United States has the most diverse assemblage of salamander specie ...

Updated: Apr 02, 2014 9:11pm PST


During the summer of 2013 I had the privilege of participating in a Ca ...

Updated: Dec 29, 2013 10:06am PST

Sierra Nevada Mountain Yellow-legged Frog

The Sierra Nevada Mountain Yellow-legged Frog has declined sharply fro ...

Updated: Dec 03, 2013 6:08pm PST


I recently had the pleasure of traveling to southern Arizona during th ...

Updated: Oct 30, 2013 5:34pm PST


The photos in this gallery are crops of larger images. Please be awar ...

Updated: Sep 01, 2013 12:32pm PST

What's New?

It has been an amazing year. I checked off a few more species in my q ...

Updated: Dec 14, 2012 9:55am PST


Updated: Aug 15, 2012 7:37am PST

Personal favorites

A few of my favorite pics from over the years. They are my favorites ...

Updated: Aug 04, 2012 12:57pm PST

Mercado Belen

The Mercado Belen near Iquitos, Peru is a fascinating place. Bush mea ...

Updated: Jun 15, 2012 5:40pm PST


Photos from the Andean high country of Peru and Bolivia. For inquirie ...

Updated: Jun 15, 2012 5:36pm PST

Your Bio

In situ, ex situ is a website dedicated to the photography of Brian Freiermuth. The site is heavily geared toward conservation of amphibians and reptiles, which is an important passion of the author. In situ, ex situ will strive to create galleries that visually describe topics in conservation, ecology, evolution and other concepts.

Brian has always been captivated by nature. Some of his earliest memories are of turtles and frogs that were given to him by family members. Those formative experiences drove Brian to learn about animals throughout his youth and that desire remains strong today. Brian attended high school at the Cincinnati Zoo, earning a technical degree in Animal Conservation and Care. After working at a venom lab and a variety of zoos and aquariums he finished his undergraduate degree in Earth Systems Science and Policy at California State University at Monterey Bay in 2005. After a few years of field work in the consulting field, Brian currently works as a Senior Biologist at the California Academy of Sciences' Steinhart Aquarium where he takes care of a diverse collection of animals with an emphasis on amphibians. Since the fall of 2012, Brian has also begun furthering his education as a graduate student researcher in the Ecology, Evolution and Conservation Biology Program at San Francisco State University. His advisor is David C. Blackburn of the California Academy of Sciences and his graduate work will focus on the reproduction, captive management and ecology of central african frogs. One focus of his work is on the enigmatic and critically endangered Lake Oku Clawed frog.

Photography has always been an interest for Brian and in recent years this interest has intensified. Brian spends much of his free time photographing the natural world, with a particular affinity for amphibians, reptiles, bugs and plants. The photographs on this site are a combination of images captured both in the natural environment (in situ) and in constructed environments, often far from their origins (ex situ).

Brian strives to inspire an appreciation of the natural world with his work. The images on this site are arranged in galleries which depict a theme or story that reflects Brian's interests. The images on this site are a small subset of the available images in the in situ, ex situ library. If you have a specific need for an image we may have, please do not hesitate to contact us at Please enjoy these photos but respect that they are copyrighted and protected so any use must be permitted expressly and in writing by Brian.