Oregon
Oregon Zoo-tested tech helps in study that finds wild polar bears are losing weight on land as sea ice melts – KTVZ
PORTLAND, Ore. (KTVZ) — A rapidly warming Arctic is taking a toll on polar bears, according to a new study using technology beta-tested at the Oregon Zoo.
The study — published this week in the science journal Nature Communications— set out to learn how wild bears are coping as the sea ice they depend on disappears for longer portions of the year.
Though classified as marine mammals, polar bears are increasingly using land in the fall and summer seasons due to declines in the sea ice, which serves as their hunting platform for ringed and bearded seals, their primary prey.
“Wild polar bears live and hunt seals on Arctic sea ice,” said Dr. Karyn Rode, a research wildlife biologist with the U.S. Geological Survey. “But as the ice melts in many parts of the Arctic, they have to spend more time on land, away from their main food source.”
To learn whether the bears might be able to adapt to these changing conditions, Rode and her colleagues deployed collars equipped with video cameras — and sensors tested at the Oregon Zoo — to track 20 bears summering on land over a three-week period.
“The bears we observed employed different survival strategies,” Rode said. “A few rested to save energy, but most remained active. Instead of seals, they ate berries, grasses and bird carcasses.”
Two bears made long swims in open water and found marine mammal carcasses, but they were unable to feed while swimming, she said. Though polar bears are capable of swimming long distances, previous zoo-assisted studies indicate they use more energy traveling by water.
After three weeks of monitoring, Rode says, the findings were not encouraging.
“All but one of the bears lost weight over the observation period,” Rode said, “This indicates that polar bears cannot adapt to spending increasing periods on land. More time spent on land results in more weight loss, depleting critical energy reserves needed to support reproduction and survival.”
It’s not good news, but conservationists say the data will be helpful for those working to save polar bears in the Arctic.
“The findings help us understand how polar bears survive in the wild,” said Amy Cutting, vice president of conservation for Polar Bears International. “As sea ice retreats, scientists and wildlife managers need to know how polar bears are responding.”
This isn’t the first time Oregon Zoo bears have lent a helping paw to conservation science. In 2012, polar bears Conrad and Tasul became the first of their species to allow voluntary blood draws. The breakthrough was huge in terms of advancing animal well-being and veterinary care, and it also opened the door to other possibilities. Polar bears are extremely difficult to observe in the wild, and the zoo’s training advances presented a unique opportunity to fill critical knowledge gaps.
After reading a news story about this milestone, Rode reached out to the zoo for assistance with her Arctic research. Zoo bears helped Rode and her colleague Anthony Pagano learn how climate change is affecting the diets of wild polar bears, calibrate tracking collars, and understand the caloric requirements of wild polar bears on land and at sea.
“Zoo bears are perfect candidates to help,” Cutting said. “They already participate in many healthcare behaviors voluntarily, and that has led to some breakthrough studies.”
All these collaborative efforts couldn’t come at a more urgent time. Polar bears are classified as threatened under the U.S. Endangered Species Act, and the International Union for the Conservation of Nature’s Species Survival Commission has designated the species as facing a high risk of global extinction.
Oregon
Texas man wanted for child sex crimes, theft arrested in SW Oregon
CURRY COUNTY, Ore. (KPTV) – A Texas man wanted for child sex crimes was arrested in Curry County on Tuesday afternoon.
The Curry County Sheriff’s Office says Kenneth Leatherwood of Bastrop, Texas, was arrested with the help of Oregon State Police and U.S. Marshals just after 12:30 p.m.
Leatherwood, who is accused of sex-related crimes involving a child in Texas, was reportedly found camping in a heavy wooded area near Lucas Lodge in Agness.
Investigators say Leatherwood has been on the run from Curry County law enforcement since June 16 after reports that he had been seen with a stolen car in the Agness area.
Leatherwood was also believed to have stolen weapons with him.
His dog was also found and returned to the suspect’s family in good shape, according to the sheriff’s office.
Copyright 2026 KPTV-KPDX. All rights reserved.
Oregon
Fireworks on sale in Oregon until July 6
PORTLAND Ore. (KPTV) – Fireworks are on sale in Oregon until July 6, but state and local rules limit where they can be used and what types are allowed.
In Portland, fireworks use and sales are banned year-round.
Fireworks are also banned on beaches and in state and national parks.
Statewide, fireworks that fly into the air, explode, act unpredictably or move more than 12 feet horizontally are illegal. Banned fireworks include sky lanterns, missiles, rockets, Roman candles, firecrackers, cherry bombs and M-80s.
Fountains, sparklers, ground spinners and smoke devices are among the fireworks allowed under state rules.
Officials said people should not call 911 to report illegal fireworks. They said reports should go to the non-emergency line for the area.
First responders said there were 263 fires across Portland during last year’s fireworks season, and 27 were caused by fireworks.
For more details about fireworks regulation in Oregon, click here.
In Washington, fireworks sales legally begin Sunday and run through July 4.
Copyright 2026 KPTV-KPDX. All rights reserved.
Oregon
Gray whale carcass washes ashore in Gearhart on Oregon coast
GEARHART, Ore. (KATU) — Another gray whale washed up on the Oregon coast last week, this time in Gearhart, according to Seaside Aquarium.
The 41-foot-long male had been dead for months before washing up on the beach, Seaside Aquarium general manager Keith Chandler said.
He noted that there have been 19 total whale strandings or carcasses washing up on beaches just this year on the Oregon coast region.
The Cascadia Research Collective is reporting at least 30 on Washington coastline alone. | TIMELINE
Of those deaths, more than half were at least partially attributed to malnutrition. That could have been the cause in more strandings, however, necropsies were not performed in roughly a dozen of the 30 strandings.
Chandler said strong wind from the west this year has been contributing to why coastal towns are seeing a lot of whales and other things washing up on shore. However he also noted that many of the Grey whales washed ashore were emaciated with necropsies showing signs of malnourishment.
“The food sources have been compromised. The warmer water means the nutrients that they’re getting aren’t as good, so the whole food chain is kind of not as healthy,” Chandler said.
He pointed to the warming waters with climate change as the main reason noting that warm water plankton–Grey Whale’s main food source–is thinner and has fewer nutrients than plankton in cooler waters.
Chandler says this whale will not have a necropsy done because of its level of decomposition.
“The fresher ones, the team from Portland State [University] will come down and they’ll go in and do measurements, take samples and stuff, measurements of the internal organs. But on one this decayed, you won’t gain anything from it scientifically. And it’s just kind of a mess to do when they’re this rotten,” he said.
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You can report a whale stranding to the West Coast Marine Mammal Stranding Network Hotline by calling 1-866-767-6114.
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