* Brazil's anteater populations have fallen 30% over 26 years * Rising heat, fires, drought and habitat loss drive decline * Extinction threats growing for many animals as planet heats By Andre Cabette Fabio AQUIDAUANA, Brazil, Nov 7 (Thomson Reuters Foundation) - As their geolocator device beeps, the team of wildlife rehab experts approach a cluster of trees and spot their quarry: A young giant anteater, sleeping on a hot morning with her luxuriant tail shading her head. She is a survivor of a fire holocaust that swept through Brazil's vast southern Pantanal in 2020, killing an estimated 17 million...