Older zoos face decisions around cages built for different times

Feb 6, 2023
The Maryland Zoo in Baltimore is planning to spend millions to build new habitats next to historic wrought-iron cages.
A black cage that no longer houses animals at the Maryland Zoo in Baltimore.
Stephanie Hughes/Marketplace

Horseshoe crab blood (and, why conservation pays)

Jun 16, 2014
The race to find a synthetic replacement for the blood of horse shoe crabs.

The price of nature conservation in the U.K.

Jun 25, 2012
In the spirit of environmental conservation, the British government wants to put a price on nature. They've created a group called the Natural Capital Committee, which will put a dollar value on landscapes, river purity, and wildlife.

U.N. warns Australia over Great Barrier Reef

Jun 5, 2012
The United Nations World Heritage Organization says the Great Barrier Reef may soon be on its endangered list if Australia doesn't control its industrial development in the next eight months.