Geographical Location: Mexico

A breeding population of ocelots just 30 miles south of the border is likely the source of occasional cat sightings in Arizona, biologists say. The population is the northernmost known...

After appearing at the National Conference of Wildlife Management and Conservation in Mexico, current TWS President Gary White and Fidel Hernández, president-elect of the TWS Southwest Section, say a Mexico...

Tiny geolocators attached to the backs of golden-winged warblers have shed new light on their migrations and revealed a part of the globe that could be critical to conserving the...

Government-funded scientific efforts in Mexico are facing significant cutbacks. To free up funds for poverty-alleviation programs, the federal government is cutting 30% to 50% of the funds that institutions, including...

When monarch butterflies overwinter in central Mexico and along the California coast, they spend much of the time dormant to help with their winter survival before reproduction. Researchers recently found...

When Marcus Drymon was conducting his usual shark surveys in the Gulf of Mexico in 2010, he wasn’t surprised to catch a small tiger shark (Galeocerdo cuvier). The surprise was...

To judge by the annual surveys, black brant (Branta bernicla nigricans) are on the upswing. After years of decline, aerial counts along their migration routes — between Mexico’s Baja Peninsula...

As a Wildlife Services airport biologist working at Naval Air Station Fallon in Nevada, I recently heard from an enthusiastic birder, Tony Thacker, who had spotted a red-tailed hawk (Buteo...

Before the 1970s, where monarch butterflies overwintered was a mystery. Then researchers succeeded worked with Mexicans to trace the migration to the hills of Michoacan. In the video below, Atlas...

Monarch butterflies (Danaus plexippus), which have been steeply declining throughout their range, showed a significant increase in their overwintering areas in Mexico, a World Wildlife Fund survey shows. The WWF...