Defective '5,000,000mAh' power bank
It arrived dead, but in a highly dangerous state and could have burst into flames at any moment.
Homing pigeons are given "backpacks" with GPS enabled devices as part of an alternative air pollution data-gathering experiment.
PigeonBlog founder Beatriz da Costa and her partners have been working with pigeons for the past year on a data-gathering initiative designed to collect information about air quality conditions and distribute it to the general public.
Caption by: Bill Detwiler
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