Manta ray populations around the world have declined in alarming numbers. Hitting the sweet spot between conservation and commerce may hold the key to the survival of these mysterious marine species.
Biologist and journalist Cord Riechelmann says foreign species don’t always spell doom for their new ecosystems. He calls for active conservation of all species instead of aggressively weeding out the invasives.
With its venomous sting and voracious appetite, the lionfish is one of the biggest threats to the world’s second-largest coral barrier reef in Belize. Now, human intervention seems the only way to fight the danger.
The rainforest in Mauritius is considered a global biodiversity hotspot, but it’s being destroyed, and foreign species are partly to blame. The country's methods to control those species are stirring up controversy.