Christy Ullrich Barcus

What Elephant Calls Mean: A User’s Guide

From powerful roars to low-frequency rumbles, elephants use a variety of vocalizations to communicate. Their sounds also include snorts, barks, grunts, trumpets, cries, and even imitated sounds. These calls are essential cues for the survival of an elephant family. Elephant ...

Walking for Elephants: One Conservationist’s Journey

Jim Nyamu, a 37-year-old Kenyan research scientist, finished his 560-mile walk in Washington, D.C., last week to raise awareness about threats to elephants in the wild. He spoke to a gathering of about a hundred people in Lafayette Park ...

Walking for Elephants: One Conservationist’s Journey

Jim Nyamu, a 37-year-old Kenyan research scientist, finished his 560-mile walk in Washington, D.C., last week to raise awareness about threats to elephants in the wild. He spoke to a gathering of about a hundred people in Lafayette Park ...

Name That Elephant: How to Identify Elephants in the Wild

By Christy Ullrich National Geographic Elephants are some of nature’s most majestic creatures. But how do scientists know who’s who in the wild? To think like an elephant scientist, it’s important to look at key characteristics, said ...

Name That Elephant: How to Identify Elephants in the Wild

By Christy Ullrich National Geographic Elephants are some of nature’s most majestic creatures. But how do scientists know who’s who in the wild? To think like an elephant scientist, it’s important to look at key characteristics, said ...

Name That Elephant: How to Identify Elephants in the Wild

By Christy Ullrich National Geographic Elephants are some of nature’s most majestic creatures. But how do scientists know who’s who in the wild? To think like an elephant scientist, it’s important to look at key characteristics, said ...

A Real-World Approach to Preserving Polar Bears in Alaska

By Susan McGrath for National Geographic Polar Bear Watch   In Barrow, on the northern coast of Alaska, the sun sets at five o’clock on October 31, and the temperature typically drops into the single digits. This doesn’t faze ...

A Real-World Approach to Preserving Polar Bears in Alaska

By Susan McGrath for National Geographic Polar Bear Watch   In Barrow, on the northern coast of Alaska, the sun sets at five o’clock on October 31, and the temperature typically drops into the single digits. This doesn’t faze ...

Exploring the Natural History of Polar Bears

Icon of the Arctic, the polar bear thrives in the remote Arctic landscape of ice and snow. World-renowned polar bear scientist Ian Stirling offers his thoughts on the state of polar bears in the wild, the threats they face today, ...