Wetlands are home to rare and endangered species and support at least 100,000 species of animal. What makes wetlands the most productive among all the ecosystems on the planet?
The vaquita in the Gulf of California is the most endangered cetacean in the world. Most likely, no more than 10 animals are left. Its extinction is imminent — and some even say, it's for the best.
The US state of Louisiana has funded a program to slaughter nutria, or swamp rats, laying waste to the coastline. The animals eat the roots of swamp vegetation to the point they have no chance of growing back.
A UN-backed report says a million species are at risk of extinction, and warns biodiversity loss and failure to conserve ecosystems has catastrophic effects on people as well as nature.
Ecological collapse and species loss threaten humanity as much as climate change. Conservationists say we're not listening.
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