Here are some of the most interesting science news articles I read this week:
The topolariton, a new half-matter, half-light particle
Ecotourism can put wild animals at risk, scientists say
If the going gets tough, when should the tough give up?
Supercoiled DNA is far more dynamic than the "Watson-Crick" double helix
Why leaders fight: where is the line between action and violence?
Should cars be fully driverless?
A bathing suit that cleans the oceans one stroke at a time
Have a good weekend, and see you Monday!