A manager at a Philadelphia-area Planet Fitness allegedly refused to allow good Samaritans to use the gym’s defibrillator on a man who suffered a heart attack outside, a lawsuit says.

We showed that despite covering only 2.4% of the planet’s land surface, freshwater habitats host over a third of these fascinating animals. We inevitably missed some studied species in our searches.

Captain Planet is one of the most iconic cartoons of the '90s, with a focus on ordinary people coming together to fight environmental destruction and corporate greed with elemental powers.

We studied three elements that absorb light at different altitudes in the planet’s atmosphere (Fig. 1): iron, which dominates the signal from the lower atmosphere; sodium, which can be found ...