(Source: John Tann/flickr)

The timeline of evolution could be shrinking dramatically for insects and animals exposed to modern human cities.

(Source: Liam Lysaght/flickr)

Seven billion tonnes of carbon dioxide can be removed every year. 

(Source: Jared Keener/flickr)

The system analyzes brain activity on mention of trigger words like death.

(Source: Carlos Reusser Monsalvez/flickr)

The first results of the clinical trial on 13 patients showed that the process is potent in shrinking tumors.