Tag: contaminants

Bald eagles have made a remarkable recovery from the brink of extinction, but lead contamination diminished that recovery, researchers found, and it continues to leave the species more vulnerable to...

Four decades after PCBs were banned, the chemicals are still present in the environment and affecting wildlife. Researchers in New York found chickadees and song sparrows that ate contaminated insects...

While California condors often die from exposure to lead and other contaminants, those that survive may still experience sublethal stress impacts. Researchers found that raptors that fed on marine mammal...

It’s hard to look for something when you don’t know what you’re looking for. That is what researchers faced when they tried to find contaminants in polar bear (Ursus maritimus)...

Northern bobwhites (Colinus virginianus) have been declining mysteriously throughout their range. In Texas, biologists have watched their numbers fall for three decades, but they’ve been unable to determine why. In...

Contaminants in the environment can have a range of harmful impacts on threatened wildlife, but without extensive field work, it’s hard to gauge what those impacts are. A group of...

Thousands of products people use daily for health and cosmetic care end up in the world’s streams, creating an unregulated concoction of compounds that could damage aquatic ecosystems in ways...

While increasing evidence suggests that wood frogs can tolerate pesticides, these adaptations may change the way the frogs deal with others. In a study published in Evolutionary Applications, researchers found...

When Gregory Bossart began studying lesions on Atlantic bottlenose dolphin (Tursiops truncatus) populations over 10 years ago, he didn’t know the extent to which they would point to negative impacts...

When you buy meat in the supermarket, it’s been subjected to safety testing before being packaged and stacked in the refrigerator case. But hunters who eat game meat may be...