Using telemetry tags to track animals started in the 1960s with acoustic tagging. Today, tags with sensors are worn by animals and collect various data from the far-reaching parts of the world where observation is technically or economically impossible.
Over the last few years, animal telemetry has been evolving to where the animals have become oceanographers. Marine animals, especially, are sensitive indicators of environmental trends. Telemetry data provides additional understanding on how animals interact with the ocean, the challenges of climate change, and marine pollution.
Wildlife Computers tags gather a variety of environmental information including salinity, temperature, fluorescence, and more.