# @usgs on Instagram

- **Type:** Video
- **Original URL:** https://www.instagram.com/p/DJZyB3ASwo-
- **Gondola URL:** https://gondola.cc/posts/69013879-usgs-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/81b25113bb.jpg
- **Posted:** 2025-05-08T18:35:53.000+00:00
- **Account Owner:** U.S. Geological Survey (USGS) (@USGS) — https://gondola.cc/USGS

## Caption

This #ThrowbackThursday we’re reintroducing this video of USGS scientists reintroducing endangered mountain yellow-legged frogs to Southern California.

This video captures a moment in the summer of 2021 when USGS scientist Elizabeth Gallegos released 8 zoo-raised froglets into a stream, just one of several such reintroductions that summer. The long-term goal is to create 25 populations of a few hundred to a thousand frogs each.

USGS scientists are working with partners at federal and state agencies and zoos to reintroduce and study endangered mountain yellow-legged frogs to Southern California, where until recently fewer than 10 tiny, fragmented populations remained. The frogs are threatened by a variety of factors including predation by non-native fish, drought, wildfire, flooding, disease, and other types of damage to their habitats. The tadpoles and froglets are hatched and reared at zoos before being reintroduced to the wild in promising habitats.

Partners include the u.s.forestservice, usfws, California Department of Fish and Wildlife, San Diego Zoo Wildlife Alliance, lazoo, Henry Doorly Zoo and Aquarium in Omaha, aquariumpacific, thesantaanazoo, ucla, castateparks, thewildlandsconservancy, USGS Amphibian Research and Monitoring Initiative, and ucberkeleyofficial.

#AmphibianWeek

## Stats

- **Views:** 293,864
- **Likes:** 10,668
- **Shares:** 0
- **Comments:** 93

## Tags

amphibianweek, throwbackthursday

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