Rising heat and habitat loss force species to adapt. Learn how Asian elephants struggle to survive and the conservationists ...
Just north of the great Serengeti wildebeest migration, a smaller migration across the Mara ecosystem is collapsing. New maps ...
Migrating animals have for a long time been tracked by recapturing tagged individuals. More recently, radio-telemetry, which requires an observer to physically follow the tagged animal, has been used.
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