Thousands of orange and black butterflies are clustering for warmth amidst stunning scenery.

CONSERVATION
Drones, armed guards, and international relocation are helping to protect rhinos from poachers.
A fast-spreading bacterial disease might someday destroy the citrus industry.
It's not the resurrection of the waxwing slain by the false azure in the windowpane, but it's pretty close.
When illegal palm trees are planted in protected Indonesian forest, Rudi Putra grabs a chainsaw.