Among the many possible contributing factors that the report cited are habitat loss, pesticide use, climate change, and introduced pathogens.

NEWYORKER: Stung

Plant diversity is being destroyed at a greater rate than ever before and much of this is due to habitat loss through changes in land use.

CNN: STORY HIGHLIGHTS

This activation process will use green energy and create a sustainable urban habitat.

FORBES: Audacious New Concept Turns Oil Rigs Into Luxury Homes

The organization will use most of the Texas City royalties to buy more habitat.

FORBES: Eco-Pragmatists

The conservation effort at Lewa -- which is a mixture of classic habitat preservation, stringent security measures (the rhinos have their own security guards at all times) and the use of the latest technology to enhance the knowledge of a species and its breeding patterns -- has been astounding.

BBC: The future of conservation in Kenya