Chinook salmon, an iconic species in the Pacific Northwest that supports a major fishery industry and indigenous traditions, have lost up to two-thirds of their genetic diversity over the past 7,000 years, according to a new study. Scientists warn the loss could make it difficult for the species to cope with warming global temperatures and ocean acidification — environmental changes that are already impacting the fish today.

When Josh Daskin traveled to Mozambique’s Gorongosa National Park in 2012, its iconic large animals were returning from the brink of extinction. Gorongosa, among Africa’s most spectacular wildlife preserves until the 1970s, had been devastated by an anti-colonial war of liberation followed by a ghastly 15-year civil war — a one-two punch that exterminated more than 90 percent of the park’s wildlife.

When it comes to marine plankton, the smaller you are the farther you travel. A new international study found that the size of plankton, and the strength and direction of currents, are key to how they are dispersed in the ocean – much more so than physical conditions including differences in temperature, salinity and nutrient availability.

It’s simple math, says a University of Alberta conservation biologist. More roads equals fewer grizzly bears.

In a recent study examining a non-invasive DNA (hair collection) dataset of grizzly bear activity in British Columbia, Clayton Lamb and his colleagues determined what scientists have long suspected: higher road density leads to lower grizzly bear density—a critical problem for a species still rebounding from a long period of human persecution.

A University of Victoria molecular biologist has gained new insights into how environmental contaminants may disrupt thyroid systems. The discovery was made while assembling the genome of the North American bullfrog.

Caren Helbing’s findings could help explain the mechanisms of early development, as well as how environmental contaminants cause thyroidrelated diseases and malfunctions.

Birds exposed to the persistent noise of natural gas compressors show symptoms remarkably similar to those in humans suffering from post-traumatic stress disorder, new research shows.

The world’s reefs are under siege from global warming, according to a novel study published today in the prestigious journal Science.

One morning not long ago, in the southern Indian state of Karnataka, I traveled with a Wildlife Conservation Society biologist on a switchback route up and over the high ridge of the Western Ghats. Our itinerary loosely followed the corridor connecting Bhadra Tiger Reserve with Kudremakh National Park 30 miles to the south.

The combined effects of pesticides and a lack of nutrition form a deadly one-two punch, new research from biologists at the University of California San Diego has shown for the first time.

A University of Victoria molecular biologist has gained new insights into how environmental contaminants may disrupt thyroid systems, discovered while assembling the genome of the North American bullfrog.

Caren Helbing’s findings could help explain the mechanisms of early development and metamorphosis, as well as how environmental contaminants cause thyroid-related diseases and malfunctions.