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The world's largest bee, a giant insect roughly the size of a human thumb, has been rediscovered in Indonesia in its first sighting in nearly 40 years. A team of researchers found a lone queen living on Indonesia's North Moluccas islands earlier this year. Indonesia is home to an abundant variety of flora and fauna but there are fears for the survival of some animal and insect communities as forests being cut down for agriculture threaten many species' natural habitats.