Some can aid the climate by removing pollutants. Others would just avoid dirtying the environment in the first place.
Why are some materials more susceptible to static cling than others? Investigate by making your own electroscope.
Mammals from bears to squirrels hibernate the winter away. Learning how they do it might one day help people mimic aspects of it to heal from brain injuries or voyage to Mars.
To win over a gal, these flashy males craft and use their signature instruments in a musical display akin to a human rock concert.