Nevada

Endangered Sierra Nevada Yellow-Legged Frogs Are Making a Comeback

Published

1 year ago

November 18, 2024

Endangered Sierra Nevada Yellow-Legged Frogs Are Making a Comeback

Sierra Nevada yellow-legged frogs are rebounding from near-extinction in California.
University of California Santa Barbara

After nearly disappearing for good, Sierra Nevada yellow-legged frogs are once again hopping happily around California’s alpine lakes.

Scientists are celebrating the comeback of the amphibians (Rana sierrae) in Yosemite National Park. Though they’re still endangered, Sierra Nevada yellow-legged frogs have made a “remarkably successful” recovery from the deadly amphibian chytrid fungus, researchers report this month in the journal Nature Communications.

“The lakes are alive again, completely transformed,” says study co-author Roland Knapp, a biologist at the University of California, Santa Barbara, to USA Today’s Elizabeth Weise. “You literally can look down the shoreline and see 50 frogs on one side and 50 on the other and in the water you see 100 to 1,000 tadpoles. It’s a completely different lake.”

Sierra Nevada yellow-legged frogs are small creatures measuring 1.5 to 3.75 inches long, according to the U.S. Fish and Wildlife Service. They live high in California’s Sierra Nevada mountain range, at elevations between 4,500 and 12,000 feet above sea level. The frogs inhabit marshes, ponds, lakes and streams, where they feast on bugs and other amphibians. They also serve as a source of food for birds, snakes, coyotes and bears.

Three frogs on a rock in water — Dozens of frogs are now visible along the shores of some alpine lakes in the Eastern Sierra.
Roland Knapp

Sierra Nevada yellow-legged frogs tend to have yellowish-orange bellies and dark, splotchy backs, but their coloring can vary widely—from greenish-brown to gray to red. They don’t have vocal sacks, so instead the frogs grind their teeth together underwater when trying to attract mates in the spring.

The frogs were once abundant throughout the Sierra Nevada. But, after the arrival of European settlers in the mid-19th century during the California gold rush, their numbers began to dwindle.

In addition to gold, miners also discovered more than 1,500 alpine lakes in California. The lakes were beautiful, but they were lacking in fish—so the miners began stocking them. The introduction of non-native species—including rainbow trout, grayling and Atlantic salmon—decimated the Sierra Nevada yellow-legged frogs.

Stocking ended in the 1990s, but even without help from humans, the non-native fish continued to reproduce and thrive. Then, in the early 2000s, the few surviving frogs in the Sierra Nevada faced yet another threat: the amphibian chytrid fungus.

The highly contagious fungus (Batrachochytrium dendrobatidis) causes chytridiomycosis, an infectious skin disease that has caused mass die-offs and extinctions among amphibians around the world. In 2014, with their populations crashing, Sierra Nevada yellow-legged frogs were added to the endangered species list.

But then scientists noticed something peculiar: In some places, Sierra Nevada yellow-legged frog numbers were increasing. It appeared that at least some of the small creatures—particularly those living in lakes without any non-native fish—had developed a resistance to the fungus.

Plastic containers with frogs inside them — Scientists carefully transported frogs that appeared to be resistant to the fungus to other lakes.
Roland Knapp

“The frogs that survive better have certain variations in their genomes,” says Erica Bree Rosenblum, a biologist at the University of California, Berkeley, to ScienceNews’ Martin J. Kernan. “Since they’re the ones surviving, they’re passing their genes down, and over time the whole population is changing toward having these more favorable genetic mutations.”

Researchers decided to implement an ambitious plan to save the species. Starting in 2006, they began gathering up the fungus-resistant survivors and re-introducing them to other alpine lakes without fish.

Now, nearly two decades later, scientists say their plan worked. These Sierra Nevada yellow-legged frog populations are now mostly self-sustaining and have “a low probability of extinction over 50 years,” they write in the paper. They hope the successful reintroduction of Sierra Nevada yellow-legged frogs might serve as a source of inspiration for scientists working to save other species battling new diseases.

“These frogs have somehow figured out how to exist, even thrive in the face of this pathogen,” Knapp tells the San Francisco Chronicle’s Kurtis Alexander. “When I saw these frog populations recovering on their own, that was the first time in 15 years working on this species that I felt a glimmer of hope.”

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Nevada

Nevada gets back in win column, downs Wyoming, 92-83

Published

1 hour ago

January 11, 2026

Press Room

Nevada gets back in win column, downs Wyoming, 92-83

Corey Camper Jr. put on a shooting clinic and helped Nevada get back in the win column.

Nevada beat Wyoming 92-83, on Saturday in front of an announced crowd of 8,906 fans at Lawlor Events Center.

Camper Jr., playing for the third time after missing a month with a back injury, scored a career-high 31 points as Nevada improved to 4-1 in the Mountain West Conference, 12-4 overall. He was 10-of-13 from the field including 5-of-7 from 3-point range, and 6-of-8 from the free throw line, playing 32 minutes. He had seven rebounds.

Elijah Price had a double-double with a career-high 20 points and 16 rebounds, in 34 minutes, while Tayshawn Comer, Amire Robinson and Peyton White each added 10 points. Comer had 10 assists as Nevada had 21 as a team. Vaughn Weems returned to the court after missing the San Diego State game on Tuesday with the flu. He played 12 minutes and scored nine points.

The Wolf Pack shot 61 percent from the field (31-51) and made 10-of-16 from the arc.

Nasir Meyer led Wyoming with 27 points as the Cowboys dropped to 2-2 in conference, 11-5 overall.

Nevada coach Steve Alford said the Wolf Pack’s defense was better against the Cowboys than it was in the loss to San Diego State.

But still not to the level he would like it.

He cited communication and players’ stances while both guarding the ball and off the ball as a few of the many fundamentals the Pack needs to improve.

“We had slippage in the (San Diego) State game and we didn’t have a whole of improvement in this game, from a defensive standpoint,” Alford said Saturday night.

Nevada’s offense was much better, though, than in the loss to the Aztecs. The Pack took better shots and eliminated bad shots.

Alford said Price played more of a complete game than he has most of the season.

Price said the Pack’s defense was not good, but played better in the second half and that as why the Pack won.

“We’re a lot better defensively than what we’ve been showing the past two games,” Price said. “We know if were going to beat Utah State on the road, we’re going to have to get some stops, so that’s what we’re focused on.”

More Key Stats

Nevada outrebounded Wyoming, 38-32. Both teams had nine offensive boards.

Nevada had eight turnovers and Wyoming had six.

The Pack outscored the Cowboys, 38-32, in the paint.

Wyoming’s bench outscored the Pack’s, 31-29.

Out

Nevada’s Joel Armotrading and Tyler Rolison did not play. Armotrading was injured against Washington on Nov. 27 and has not played since. Rolison has a back injury.

Half

Wyoming led, 39-38, at the half. Camper Jr. had 19 points in the first half.

Nevada shot 14-of-27 from the field and 5-of-10 from the ac.

The Cowboys outscored the Wolf Pack in the paint, 22-14.

Up Next

Nevada travels to play at State at 7 p.m. Wednesday.

The Aggies dominated Boise State on Saturday, taking a 93-68 win to improve to 14-1 overall, 5-0 in conference.

Nevada will travel to Logan, Utah on Tuesday, and stay on the road for the following game, at Air Force on Saturday.

“(Utah State) has one of the best crowds in the Mountain West , so we know it’s going to be a very difficult game for us,” Alford said. “We needed to get this one, to get that momentum before we go on the road.”

Alford said if Indiana wins that game, and finished 16-0, it means Indiana will have the only two undefeated season in college major sports as the Hoosiers 1976 basketball team was undefeated.

Alford’s Alma Mater

Alford played college basketball at Indoana.

The Hoosiers are playing Miami for the national football championship on Jan 19.

Steve Alford discusses Nevada’s 92-83 win over Wyoming on Saturday

Nevada men’s basketball coach Steve Alford discusses the Wolf Pack’s 92-83 win over Wyoming on Saturday

Nevada’s Remaining Schedule

Wednesday, Jan. 14, 7 p.m. at Utah State (TV: CBS Sports Network/Radio: 95.5 FM)
Saturday, Jan. 17, 1 p.m. at Air Force (TV: MW Network, Ch. 21/Radio: 95.5 FM)
Tuesday, Jan. 20, 7 p.m. vs. San Jose State (TV: KNSN, MW Network, Ch. 21/Radio: 95.5 FM)
Saturday, Jan. 24, 5 p.m. at New Mexico (TV: CBS Sports Network/Radio: 95.5 FM)
Tuesday, Jan. 27, 7:30 p.m. vs. Grand Canyon (TV: FS1/Radio: 95.5 FM)
Friday, Jan. 30, 7 p.m. vs. UNLV (TV: CBS Sports Network/Radio: 95.5 FM)
Tuesday, Feb. 3, 5 p.m. at Boise State (TV: MW Network, Ch. 21/Radio: 95.5 FM)
Saturday, Feb. 7, 7 p.m. vs. Fresno State (TV: KNSN, MW Network, Ch. 21/Radio: 95.5 FM)
Saturday, Feb. 14, 7 p.m. at San Diego State (TV: CBS Sports Network/Radio: 95.5 FM)
Tuesday, Feb. 17, 7 p.m. at San Jose State (TV: MW Network, Ch. 21/Radio: 95.5 FM)
Saturday, Feb. 21, 7 p.m. vs. Utah State (TV: FS1/Radio: 95.5 FM)
Tuesday, Feb. 24, 8 p.m. vs. New Mexico (TV: CBS Sports Network/Radio: 95.5 FM)
Saturday, Feb. 28, 7 p.m. at UNLV (TV: CBS Sports Network/Radio: 95.5 FM)
Tuesday, March 3, TBD at Wyoming (TV: MW Network, Ch. 21/Radio: 95.5 FM)
Saturday, March 7, 7 p.m. vs. Air Force (TV: KNSN, MW Network, Ch. 21/Radio: 95.5 FM)

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Nevada

State police union official on Nevada Wild

Published

13 hours ago

January 10, 2026

Press Room

State police union official on Nevada Wild

RENO, Nev. (KOLO) – Nevada Police Union’s Vice President James Mortimore is on Nevada Wild.

“This is awesome!” the union’s Saturday, Jan. 10, Facebook post said.

All ten episodes of Nevada Wild season one are streaming on HBO Max.

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Nevada

Motorcyclist dies on I-15 near Tropicana, police say

Published

1 day ago

January 10, 2026

Press Room

Motorcyclist dies on I-15 near Tropicana, police say

LAS VEGAS (FOX5) — Nevada State Police said a motorcyclist is dead after a crash on I-15 near the Las Vegas Strip Friday.

Police said the crash happened just before 7 p.m. at I-15 northbound at Tropicana Avenue. The crash involves the motorcyclist, a sports utility vehicle, and a commercial motor vehicle.

The motorcyclist died at the scene, police say.

A social media post from Nevada State Police just before 8 p.m. says the closure could last for four to six hours. Drivers in the area are being diverted to exit at Tropicana Avenue.

Traffic Alert – Las Vegas, NV
1/9/2026 – 6:54 p.m.: The Nevada Highway Patrol is currently investigating a fatal crash on the I15 Northbound at Tropicana Avenue.
The I15 is closed to all northbound traffic at Tropicana Avenue.
This closure is expected for the next four to… pic.twitter.com/JFfsahlLMU
— Nevada State Police (@NVStatePolice) January 10, 2026