A study released this week (Sept. 12, 2016) is shedding new light on how scientists evaluate polar bear diet and weight loss during their fasting season. On average, a polar bear loses up to 30 percent of its total body mass while fasting during the open-water season.

As conservationists work to recover endangered species populations, taking individuals that are maintained and protected under human care and reintroducing them into the wild, it becomes apparent that there is a great deal to learn about the science of species recovery. In a paper published in the recent edition of the Journal of Applied Ecology, a team of wildlife experts from San Diego Zoo Global, the U.S. Geological Survey, the U.S.

Twenty Years of Headstarting Program Boosts Survival of Species in the Wild

One month after 50 endangered Pacific pocket mice were released into Laguna Coast Wilderness Park, reintroducing the species into its historic range, scientists and researchers from San Diego Zoo Global conducted a health check on the animals. Staff set out 237 traps during four different nights and captured Pacific pocket mice to check their weights, overall heath and signs of reproductive activity. The traps were set at dusk and checked at midnight, and they were reset for a second check at 3:30 a.m. All the traps were closed following the second check.

Pacific Pocket Mice from San Diego Zoo Global Breeding Facility Will Establish Fourth Wild Population, in Southern California

Breeding Program Staff Prepares to Release Animals to Native Habitat