In the Whale Song Project, you can help figure out which groups of whales have different dialects. Maybe even help figure out what some whale songs mean.
Since 2001, the Jakoshavn Glacier, the world's fastest flowing glacier, has more than doubled its flow rate and now discharges about 5 percent of the ice leaving the Greenland ice sheet.
You probably wouldn't attempt to run a marathon without any training. Yet that's exactly what migratory birds do when they set off on their epic journeys.