Wildlife Secrets Revealed With Advanced Tracking Devices

Solar-powered trackers on wings have recorded California condors soaring to 15,000 feet, while locators attached to humpback whales have revealed 1,000-foot dives to underwater mountains. And GPS collars on Yellowstone grizzly bears are giving new insights into one of the most studied large carnivore populations in the world.

Technological advances in recent years have allowed what could be the most inquisitive Earth dweller of them all, humans, to invent ever more ingenious tracking devices to find out what their fellow inhabitants are up to.

“It’s a large field that’s developing very fast,” said Alex Zerbini, a research biologist with the National Oceanic and Atmospheric Administration’s National Marine Mammal Laboratory in Seattle. “There are many types of tags being developed for many species of marine animals.”

Scientists say the trove of information thanks to ever smaller, tougher and more powerful tracking devices is leading to discoveries that could be used to make better wildlife and habitat management decisions.

The devices are also revealing the secret lives of hard-to-study animals.

For example, Zerbini said, scientists recently discovered humpback whales diving to underwater mountains on a regular basis, and also making the dives during migrations.