Between 1975 and 2014, average adult grew 1.3 percent taller and 14 percent heavier, triggering 6.1 percent uptick in energy consumption
New York may soon charge a fee to drive into central Manhattan as a way of reducing traffic and raising funds for public transit
'The Population Bomb' made dire predictions—and triggered a wave of repression around the world
A new agricultural analysis of the island finds that the crop could have supported more than 17,000 people
With a soaring population, the iconic marsupials are overwhelming other species and may soon run out of food
The popular poultry is just one of many key food resources that hit peak production between 5 and 30 years ago
From Los Angeles to Lagos, see how megacities have been taking over the planet during the past 100 years
Millions of people worldwide flee their homes to escape violence, persecution or natural disasters. Here’s where they live
Garlic mustard and Asian carp can wreak havoc on their ecosystems, but do they have a future on your dinner plate?
The Smithsonian's noted bird sleuth, Carla Dove, eyes smelly globs to identify victims in Florida
Now numbering in the millions, these shockingly destructive and invasive wild hogs wreak havoc across the southern United States
Animals as common as goats, deer, rabbits or mice can have a devastating effect on other wildlife
As the world's oceans are degraded, will they be dominated by jellyfish?
In Worcester, Massachusetts, authorities are battling an invasive insect that is poised to devastate the forests of New England
Researchers explore why members of one species are thriving in urban areas while rural populations dwindle
How the world's 6.6 billion people threaten the health of the ecosystem
What happens when you mix evolution with climate change?
A son of the colonial aristocracy goes on trial for killing a poacher in Kenya, where an exploding human population is heightening tensions
A new strategy to curb the spread of gypsy moths