Narwhals increasingly exposed to mercury
Narwhal tusks can tell researchers a lot about the marine mammals’ feeding habits and exposure to dangerous chemicals. “They’re kind of like tree rings,” ...
prey
Monterey Bay sea otters maintain kelp supply
In Monterey Bay, California, where kelp forests have decreased, sea otters are helping maintain pockets of kelp that can reseed barren areas in the future. In 2012, ...
For roaming cats, meatier food and play mean less prey
When pet owners in the United Kingdom feed their pet cats diets heavy in meat or play with them, the felines are less likely to bring home wildlife prey. While the ...
Watch: How wolves ambush their beaver prey
Wolves are often known for hunting in packs to track down prey species like deer, elk or bison. But in some areas during the summer, wolves will also go out on ...
Wolves alter Minnesota wetlands
Wolves in Minnesota’s Voyageurs National Park are changing the wetlands ecosystem there, researchers found, due to their appetite for beavers. “Wolves eat a lot ...
For some carnivores, half their diet comes from human food
Human food comprises up to half the diet of carnivores living close to people, researchers found, which can have consequences for the individuals and the ecosystem. ...
TWS2020: Where do belugas spend their summers?
Beluga whales are likely choosing where to spend their summers in estuaries based on the prey available, researchers found. The western Hudson Bay is home to the ...
Pet cats’ impact on wildlife hits close to home
Pet cats don’t stray too far from their homes, but in the areas they travel, they can have a greater impact on wildlife than their wild counterparts roaming the ...
Moose provide Isle Royale wolves plenty of meals
Gray wolves (Canis lupus) translocated to Isle Royale National Park in Michigan are finding plenty of prey, researchers found. Studying the remains of prey the ...
Wildlife forensics unveil predator-prey interaction clues
A single piece of evidence may not solve a crime, but put together lots of pieces and investigators can paint an entire picture of a crime scene. That’s not so ...