How ants teach each other (and how to define "teaching")

When ants are praised for their intelligence, its for their collective intelligence. By following biological programming or pheromone trails, ants build giant, well-ventilated structures or craft the most efficient possiblenetwork of paths to find food. They're treated as a set of pre-programmed instruments that… » 11/12/13 9:20am 11/12/13 9:20am

Damaged ecosystems can repair themselves faster than we thought

In the nineteenth century, farmers in New England completely destroyed the region's forests. Thick woods were cut down to make way for farms, driving out deer, beavers, owls and bears. But today, just a little over a century later, the forests are back — and the animal populations are recovering too. » 9/02/13 2:30pm 9/02/13 2:30pm