Thomas Kokta via Getty Images
Hope for the vaquita, the most endangered marine mammal on Earth, is fast diminishing. Despite international efforts to prevent the extinction of the world's smallest porpoise, found only in Mexico's...
As global temperatures have spiraled out of control, Arctic sea ice has been reduced to historic lows. And unless humans win the fight to combat climate change, polar bears could very well go extinct,...
Juan Carlos Ulate / Reuters
There are fewer than 60 of the planet's rarest marine mammal. Scientists hope their capture plan will change that.
Mario Anzuoni / Reuters
In sloth style, we're a day late.
Gary Cameron / Reuters
From Leo to Ellen, some stars actually give back.
The iconic species is still at risk.