forward just four decades,” Wagner says, “we’re talking about nearly half the tree of life disappearing in one human lifetime. That is absolutely catastrophic.”.........
In Costa Rica, Janzen described the fall in numbers of insectivorous birds in the reserve as “cratering”. A colony of about 20 nectar-eating bats have long nested in the dark nooks of Janzen and Hallwachs’ house, but Janzen has noticed the flowers they used to feed from are now failing to bloom.
Hallwachs began to find their small, emaciated bodies lying on the floor. “Over a period of five days, I found three of these bats dead,” she says. Researchers at another site 20 miles away told her they were witnessing the same thing.
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