When you think the word "steroid," the first image that likely comes to mind is a muscle-bound meat head flexing in front of a mirror at the gym. But, while the consequential squeaky voice may be pretty on-point, you still will likely be surprised to learn that, in nature, it's squirrels who use "roids" to get buff.
Europe and Asia are due for some harsh winters in the future thanks to Arctic ice melt, new research says.
Our warming world may be impacting what birds show up where during the winter. Scientists have found that the resident communities of birds that appear at eastern North America's backyard bird feeders in winter have changed as temperatures have increased.